{"title":"Loose Sapphires from Tanzania","description":"\u003ch1 style=\"text-align: center;\"\u003eStrange Color. Complicated Stones. Tanzania.\u003c\/h1\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTanzanian Sapphires\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzanian sapphire can get weird.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat is probably the easiest way to explain why we like it.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eBlue can move into violet. Green can carry yellow. Purple can turn warmer under different lighting. Some stones show obvious zoning. Others are full of silk, twinning, crystals, or inclusions that make the inside of the sapphire just as interesting as the color.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAnd then you find a clean one with a color you were not expecting at all.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzania produces sapphire from several very different gem regions, including the Umba Valley in the north and Songea, Tunduru, and Winza farther south and inland. The material coming from those areas can look dramatically different from one locality to the next.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThere is no one Tanzanian sapphire.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat is what makes the origin interesting.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eUmba Valley\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eUmba is probably the Tanzanian sapphire locality we get most excited about.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe Umba River Valley in northern Tanzania has produced sapphire in an unusually broad range of colors, including blue, green, yellow, orange, purple, pink, and stones showing combinations or changes between colors.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eIt is also particularly well known for color-change sapphire. GIA has documented Umba stones that appear blue under daylight or fluorescent light and shift toward purple under incandescent light.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eBut color change is only part of what makes Umba material interesting.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe stones can have complicated internal structures, strong zoning, repeated twinning, silk, and inclusions that give individual sapphires a completely different personality. Gemological research has noted heavy repeated twinning as a particularly characteristic inclusion feature in Umba sapphire.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome people see that and think imperfect.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe usually start looking closer.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eColor Change, Color Shift \u0026amp; Everything Between\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eNot every Tanzanian sapphire changes color.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eBut when they do, they can be spectacular.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eA true color-change sapphire shows a noticeable change in perceived color under different types of illumination. Other stones may show a more subtle color shift, where the balance between blue, green, violet, gray, or another tone changes as the lighting changes.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eUmba material is particularly famous for this, but Tanzanian sapphire in general can have complicated color behavior.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSometimes you think you understand the stone outside.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThen you walk indoors.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAnd you have a different sapphire.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat is difficult to communicate with one photograph, which is why we pay attention to how these stones behave under several lighting conditions.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eSongea\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eSongea, in southern Tanzania, has its own sapphire history and its own type of material.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSapphire production there became significant in the early 1990s, and the region has produced an unusually broad range of colors. Songea rough can show blue, green, yellow, purple, brownish tones, and combinations that do not always fall cleanly into traditional sapphire categories.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome Songea sapphire can have strong modifying colors.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe do not necessarily see that as a problem.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSometimes a sapphire that cannot decide whether it is green, blue, gray, or something else entirely is much more interesting than one that gives you an easy answer.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSongea is also an important locality to understand when discussing treatment. Some material from the region has historically responded to advanced treatments such as beryllium diffusion, so treatment disclosure matters.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe evaluate the stone in front of us and disclose known treatment information individually.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eOrigin does not replace disclosure.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTunduru\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eThen there is Tunduru.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSouthern Tanzania around Tunduru has produced an extraordinary variety of gemstones, and sapphire is an important part of that story.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe deposits east of Tunduru, particularly around river systems such as the Muhuwesi, Lumesule, and Ruvuma, have produced blue, yellow, green, pink, and purple sapphires. GIA field researchers have documented fine blue, pink, and purple sapphire rough from the region as well.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAgain, the attraction for us is range.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eYou can have classic-looking material sitting next to something with strange zoning or a color that does not immediately remind you of sapphire at all.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat unpredictability keeps things interesting.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eWinza\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eWinza is another completely different chapter.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eLocated in central Tanzania, Winza is known for both ruby and sapphire. Sapphire from the locality has been documented in pink, purple, and blue, with some stones showing very strong color zoning.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome Winza material can display distinct bluish-violet zones following the natural growth structure of the crystal.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat is exactly the kind of thing that affects how we look at a piece of rough.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eDo you try to hide the zoning?\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eDo you orient the stone to blend it?\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eOr do you put it right where everyone can see it?\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSometimes the technically obvious decision is not the interesting one.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eInclusions Are Not Automatically the Enemy\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzanian sapphire can have a lot going on inside.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eTwinning.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSilk.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eCrystals.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eGrowth features.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eColor zones.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eFractures.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome stones are relatively clean.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eOthers look like entire geological events happened inside them.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eTraditional grading tends to reward clarity, and clarity certainly matters.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eBut we do not believe every visible inclusion makes a sapphire worse.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAn inclusion can create texture.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSilk can change the way light moves through a stone.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eTwinning or zoning can make the internal structure visible in a way that gives the sapphire an identity you could never duplicate.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe question for us is not simply, “Is it included?”\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe question is, “Does what is inside make the stone more interesting?”\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSometimes the answer is absolutely yes.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eThe Cut Has to Respect the Material\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzanian rough can make cutting complicated.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eStrong zoning may mean that a small change in orientation completely changes the face-up color.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eA color-change stone needs to work in more than one lighting environment.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eHeavily twinned or included rough may have structural considerations that influence the final shape.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAnd an unusual piece of material may simply look better if you stop trying to make it conventional.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat is where the cutter matters.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe look at where the color sits.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe look at what is inside.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe look at the crystal.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThen we decide what deserves to stay.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSometimes that becomes a precision geometric cut.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSometimes an antique-inspired pattern.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSometimes something we have to design specifically for that piece of rough.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe material gets a vote.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eHeated \u0026amp; Untreated Tanzanian Sapphires\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzanian sapphire can be found both untreated and treated.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eBecause Tanzania contains multiple deposits with very different types of sapphire material, it does not make sense to apply one treatment statement to the entire country.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome stones are beautiful exactly as they formed.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eOthers may have been heated.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eCertain Tanzanian material has also historically been subjected to more advanced treatments, which makes accurate disclosure particularly important.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe disclose known treatment information stone by stone.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWe would rather tell you exactly what we know than make a blanket statement because it sounds better.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eOne Country. Very Different Sapphire.\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eThat is what we find most interesting about Tanzania.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eUmba does not look like every Songea stone.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSongea does not define Tunduru.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eWinza brings something else entirely.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eEven two sapphires from the same locality may have almost nothing visually in common.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzania can give you clean blue sapphire.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eIt can give you purple.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003ePink.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eGreen.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eYellow.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eColor change.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eHeavy zoning.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eIncluded material.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eStrange material.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAnd stones that somehow manage to be several of those things at once.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat is our kind of place.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eChoosing a Loose Tanzanian Sapphire\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzanian sapphire works especially well when you choose the gemstone before deciding what the jewelry should look like.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eA color-change Umba sapphire may deserve a setting that lets you see as much of the stone as possible.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eA heavily zoned sapphire might dictate its own orientation.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eA purple or blue Winza stone may lead the design in a completely different direction.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAnd a strange geometric piece from Songea may make the entire piece of jewelry obvious the moment you see it.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eStart with the sapphire.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eLearn what it does.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThen build around it.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eSelected Because They Are Different\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003eWe are not trying to find one perfect example of Tanzanian sapphire.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThat would miss the point.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome stones make the collection because of their color.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome because they change color.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome because the inclusions are incredible.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSome because the rough allowed us to cut something we had not planned.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eAnd some because we looked at them and immediately knew we had never seen another sapphire quite like it.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThose are difficult to leave behind.\u003c\/p\u003e\n\u003ch2 style=\"text-align: center;\"\u003eTanzanian Sapphire Questions\u003c\/h2\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhere are sapphires found in Tanzania?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzania has several important sapphire-producing regions, including the Umba Valley, Songea, Tunduru, and Winza. Sapphire and other gem corundum have also been documented from additional Tanzanian localities.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat is an Umba sapphire?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eUmba sapphires originate from the Umba River Valley in northern Tanzania. The locality is known for sapphire in a wide variety of colors and is especially famous for color-change material.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eDo all Umba sapphires change color?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eNo.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThe Umba Valley is well known for color-change sapphires, but not every sapphire from Umba displays that phenomenon. The region produces material in many colors and appearances.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat colors do Tanzanian sapphires come in?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eTanzanian sapphires can occur in blue, green, yellow, purple, pink, orange and mixed or modifying colors. The exact color range varies between deposits.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhy are some Tanzanian sapphires heavily included?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eDifferent Tanzanian deposits can produce sapphires with characteristic internal features including twinning, crystals, silk, growth structures, zoning, and fractures.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eNot every Tanzanian sapphire is heavily included, and the type and appearance of inclusions vary significantly between localities.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat is special about Songea sapphire?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eSongea produces sapphire across a broad range of colors and is one of Tanzania's major southern sapphire-producing areas. Some material is known for strong modifying colors, which can result in unusually complex stones.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat is special about Tunduru sapphire?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eTunduru and the surrounding river deposits are known for tremendous gem diversity. Sapphire from the region has been found in blue, yellow, green, pink, purple, and other colors.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eWhat is special about Winza sapphire?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eWinza produces both ruby and sapphire. Its sapphires can occur in pink, purple, and blue, and some material displays particularly strong or unusual color zoning.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAre Tanzanian sapphires untreated?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eSome are.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eOthers may be heated or have undergone other treatment. Treatment varies by stone and locality, so we disclose known treatment information on each individual listing rather than making one claim for the entire collection.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eAre Tanzanian sapphires good for engagement rings?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eYes.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eSapphire is a durable gemstone, but an individual stone's fractures, surface-reaching inclusions, treatment, and cut should still be considered when it is intended for everyday jewelry.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eThis is especially important with heavily included material.\u003c\/p\u003e\n\u003ch3 style=\"text-align: center;\"\u003eCan CBQ source a specific Tanzanian sapphire?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eYes.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eIf you are looking for a particular Tanzanian locality, color, size, color-change behavior, treatment status, cut, or overall character, contact us and tell us what you are trying to find.\u003c\/p\u003e","products":[{"product_id":"7-14ct-color-changing-teal-blue-green-to-peach-sapphire-custom-geometric-oval-umba-river-tanzania","title":"7.14CT Sapphire: Color Changing Custom Geometric Oval Cut","description":"\u003cdiv class=\"flex-1 overflow-hidden\"\u003e\n\u003cdiv class=\"react-scroll-to-bottom--css-ribrg-79elbk h-full\"\u003e\n\u003cdiv class=\"react-scroll-to-bottom--css-ribrg-1n7m0yu\"\u003e\n\u003cdiv class=\"flex flex-col pb-9 text-sm\"\u003e\n\u003cdiv data-testid=\"conversation-turn-165\" class=\"w-full text-token-text-primary\"\u003e\n\u003cdiv class=\"px-4 py-2 justify-center text-base md:gap-6 m-auto\"\u003e\n\u003cdiv class=\"flex flex-1 text-base mx-auto gap-3 md:px-5 lg:px-1 xl:px-5 md:max-w-3xl lg:max-w-[40rem] xl:max-w-[48rem] group final-completion\"\u003e\n\u003cdiv class=\"relative flex w-full flex-col lg:w-[calc(100%-115px)] agent-turn\"\u003e\n\u003cdiv class=\"flex-col gap-1 md:gap-3\"\u003e\n\u003cdiv class=\"flex flex-grow flex-col max-w-full\"\u003e\n\u003cdiv class=\"min-h-[20px] text-message flex flex-col items-start gap-3 whitespace-pre-wrap break-words [.text-message+\u0026amp;]:mt-5 overflow-x-auto\" data-message-id=\"888ea641-4af5-4419-a2a2-35eed61e5db0\" data-message-author-role=\"assistant\"\u003e\n\u003cdiv class=\"markdown prose w-full break-words dark:prose-invert dark\"\u003e\n\u003ch2\u003eSpecifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Color-Changing (Earthy Teal Blue Green to Earthy Peach)\u003c\/li\u003e\n\u003cli\u003eWeight: 7.14 carats\u003c\/li\u003e\n\u003cli\u003eCut: Custom Geometric Oval\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 13.54 x 10.14 x 6.86 (Length x Width x Depth)\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: Natural, No treatment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-section-id=\"1sxiv3h\" data-start=\"547\" data-end=\"566\"\u003eAbout This Stone\u003c\/h2\u003e\n\u003cp data-start=\"568\" data-end=\"1040\"\u003eThis 7.14 carat loose sapphire comes from the Umba River in Tanzania and shows a distinctive color change from earthy teal blue green to earthy peach. The custom geometric oval cut gives the stone a bold outline while allowing the shifting color to read clearly as it moves through different light. Umba sapphires are known for their unusual natural color and individual character, and this stone has both strong size and a rare palette that makes it especially memorable.\u003c\/p\u003e\n\u003cp data-start=\"1042\" data-end=\"1337\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eIts scale and shape make it especially well suited for a substantial custom ring or pendant necklace, as well as a one-of-a-kind collector piece. This natural unheated sapphire would appeal to someone looking for a loose Tanzania sapphire with color change, strong presence, and an uncommon cut.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867533586492,"sku":"10SA1223TZ096","price":6400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/IMG-20240521-WA0000.jpg?v=1771267694"},{"product_id":"1114ms0003","title":"6.74CT Sapphire: Color-Changing Custom Elongated Shield","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Color-Changing Bluish Green with Rainbow Iridescence and Sheen \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 6.74 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Elongated Shield Step Cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 17.20 x 8.30 x 4.30\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867533619260,"sku":"10SA1223TZ090","price":2746.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Unheated_Umba_River_Sapphire_6.74_Carats_Unique_Color-Shift_Shield_Cut.jpg?v=1751524368"},{"product_id":"1114ms0006","title":"3.82CT Sapphire: Color-Changing Custom Modified Calf Head Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Color-Changing Earthy Grey Green, Color Change Grey, Pink, Peach\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 3.82 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Modified Calf Head\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.48 x 8.79 x 6.39\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867533717564,"sku":"10SA1223TZ095","price":1769.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/3.82CT_Sapphire_Color-Changing_Custom_Modified_Calf_Head_Cut.jpg?v=1751524365"},{"product_id":"1114ms0007","title":"3.78CT Sapphire: Earthy Brown Cognac Custom Leaf Portrait Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Earthy Brown Cognac\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 3.78 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Leaf Portrait\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 12.76 x 4.78 x 3.80\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867533750332,"sku":"10SA1223TZ097","price":1467.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Earthy_Brown_Cognac_Sapphire_-_Leaf_Portrait_Cut_-_3.78_Carats_on_Wooden_Texture.jpg?v=1751524364"},{"product_id":"1114ms0018","title":"2.94CT Sapphire: Rich Strawberry Red Custom Shield Step Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Rich Strawberry Red, Dusty Rose Mauve\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.94 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Shield Step\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.20 x 10.15 x 6.02\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867534078012,"sku":"10SA1223TZ089","price":2549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Precision-Cut_Tanzanian_Shield_Sapphire_2.94ct_on_Rustic_Wood.jpg?v=1771267500"},{"product_id":"1114ms0022","title":"2.38CT Sapphire: Mulberry Purple Custom Shield Rose Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Mulberry Purple\u003c\/li\u003e\n\u003cli\u003eWeight: 2.38 carats\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 11.63 x 9.66 x 3.11\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Shield Rose\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867534209084,"sku":"10SA1223TZ092","price":2070.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/2.38_Carat_Mulberry_Purple_Sapphire_-_Custom_Shield_Rose_Cut.jpg?v=1751524354"},{"product_id":"1114ms0024","title":"2.16CT Sapphire: Denim Blue Custom Geometric Elongated Cushion","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: No Heat Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Denim Blue\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.16 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Geometric Elongated Cushion\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 10.66 x 5.55 x 4.17\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867580969020,"sku":"10SA1223TZ098","price":1346.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Denim_Blue_Sapphire_on_Velvet_Display.jpg?v=1771267782"},{"product_id":"1114ms0027","title":"1.65CT Sapphire: Raspberry Red Custom Modified Trillion Cut","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSpecifications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Raspberry Red\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 1.65 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Modified Trillion\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.60mm x 9.10mm x 3.90mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River Valley, Tanga, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867581329468,"sku":"10SA1223TZ094","price":850.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/rn-image_picker_lib_temp_18982c32-7b38-44f3-9bf4-b6c3a06f83cd.jpg?v=1751524350"},{"product_id":"1114ms0029","title":"1.42CT Sapphire: Color-Shifting Periwinkle Teal Blue Precision Cushion Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eWeight: 1.42 carats\u003c\/li\u003e\n\u003cli\u003eCut: Precision Cushion\u003c\/li\u003e\n\u003cli\u003eColor: Color-Shifting Periwinkle Teal Blue\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 6.90 x 5.50 x 4.00\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867581657148,"sku":"10SA1223TZ091","price":1750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/IMG-20240614-WA0026.jpg?v=1771267578"},{"product_id":"1114ms0031","title":"1.37CT Sapphire: Purple Custom Modified Convex Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Purple\u003c\/li\u003e\n\u003cli\u003eWeight: 1.37 carats\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 7.30 x 4.90 x 3.80\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; Cut: Custom Modified Convex Emerald Cut\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River Valley, Tanga, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":40867581919292,"sku":"10SA1223TZ093","price":1283.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/IMG-20240516-WA0011.jpg?v=1772606263"},{"product_id":"10sa1223tz001","title":"4.02CT Sapphire: Earthy Greenish Pinkish Golden Peach with Orange Fluorescence Custom Cushion Mix Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor:  Earthy Greenish Pinkish Golden Peach with Orange Fluorescence\u003c\/li\u003e\n\u003cli\u003eWeight: 4.02 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom Antique Style Cushion Mixed Cut\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 11.62 x 8.87 x 4.06\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176948899900,"sku":"10SA1223TZ001","price":2803.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Natural_4.02ct_Tanzanian_Sapphire_Custom_Cushion_Shape.jpg?v=1771266746"},{"product_id":"10sa1223tz002","title":"3.81CTSapphire: Raspberry Plum Custom Elongated Cushion Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Raspberry, Plum\u003c\/li\u003e\n\u003cli\u003eWeight: 3.81 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom elongated cushion mixed cut\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 11.50 x 6.90 x 5.57\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176948965436,"sku":"10SA1223TZ002","price":2015.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Natural_Umba_River_Sapphire_3.81-Carat_Raspberry_Plum_Gemstone.jpg?v=1751524282"},{"product_id":"10sa1223tz003","title":"3.75CT Sapphire: Earthy Orangish Red Ruby Grapefruit Precision Pear Mixed Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Earthy Orangish Red Ruby Grapefruit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 3.75 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Precision Pear Mixed Cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 11.73 x 8.75 x 4.93\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949030972,"sku":"10SA1223TZ003","price":925.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/3.75ct_Earthy_Orangish_Red_Pear-Cut_Sapphire_from_Umba_River_Tanzania.jpg?v=1757379074"},{"product_id":"10sa1223tz004","title":"3.50CT Sapphire: Yellow Orange Champagne Custom Modified Radiant","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Earthy Yellow Orange Champagne\u003c\/li\u003e\n\u003cli\u003eWeight: 3.50 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom modified radiant\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 12.22 x 7.27 x 3.32\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River Valley, Tanga Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. 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Quashen International","offers":[{"title":"Default Title","offer_id":41176949293116,"sku":"10SA1223TZ005","price":2932.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/FullSizeRender_e5c51be7-fbfc-48d3-ace5-1a7dd6f1b4ba.jpg?v=1778266073"},{"product_id":"10sa1223tz006","title":"3.10CT Sapphire: Yellow Green Custom Cushion","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Green, Yellow\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 3.10 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom Cushion\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.86 x 8.86 x 4.00\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949358652,"sku":"10SA1223TZ006","price":1290.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/3.10CT_Green_Yellow_Sapphire_Custom_Cushion_Cut_Untreated_from_Umba_River_Tanzania.jpg?v=1761597380"},{"product_id":"10sa1223tz007","title":"2.90CT Sapphire: Orange, Yellow, and Red Modified Pear","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Orange, Yellow, Candy Apple Red\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.90 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified Pear\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 10.64 x 7.90 x 4.83\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949424188,"sku":"10SA1223TZ007","price":1790.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/2.90_Carat_Orange_Sapphire_-_Modified_Pear_Cut_Gemstone.jpg?v=1751524280"},{"product_id":"10sa1223tz008","title":"2.85CT Sapphire: Pink Purple Red Custom Radiant Oblong Octagon Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Pink, Purple, Red\u003c\/li\u003e\n\u003cli\u003eWeight: 2.85 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom radiant Emerald cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 11.30 x 8.51 x 4.35\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River Valley, Tanga Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949489724,"sku":"10SA1223TZ008","price":1230.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/2.85CT_Pink_Purple_Red_Sapphire_Custom_Radiant_Emerald_Cut_Untreated_from_Umba_River_Valley_Tanzania.jpg?v=1761595895"},{"product_id":"10sa1223tz010","title":"2.74CT Sapphire: Green Yellow Orange Parti Custom Octagonal Step Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Green, Yellow, Orange, Parti\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.74 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom octagonal step cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 10.88 x 6.46 x 3.64\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River Valley, Tanga Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949522492,"sku":"10SA1223TZ010","price":1694.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/2.74CT_Parti_Sapphire_Green_Yellow_and_Orange_Custom_Octagonal_Step_Cut_Untreated_from_Umba_River_Tanzania.jpg?v=1762298249"},{"product_id":"10sa1223tz013","title":"2.31CT Sapphire: Green Teal Yellow Custom Elongated  Baguette Portrait Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Yellow Green Teal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.31 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom Elongated  Baguette Portrait Cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 12.63 x 5.59 x 2.64\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949719100,"sku":"10SA1223TZ013","price":858.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Elegant_2.31CT_Sapphire_Yellow_Green_Teal_Custom_Elongated_Baguette_Portrait_Cut.jpg?v=1766519496"},{"product_id":"10sa1223tz014","title":"2.29CT Sapphire: Yellow, Teal, and Green Modified Cushion","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Yellow, Teal, Green\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.29 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified Cushion\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 9.71 x 6.33 x 3.68\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949751868,"sku":"10SA1223TZ014","price":2082.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/IMG-20240514-WA0030.jpg?v=1751524277"},{"product_id":"10sa1223tz015","title":"2.28CT Sapphire: Earthy Green Color shift to Earthy Faint Pink Peach Custom Oval Brilliant","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Earthy Green Color shift to Earthy Faint Pink Peach \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.28 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom Oval Brilliant Cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 9.47 x 7.48 x 4.08\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176949850172,"sku":"10SA1223TZ015","price":1190.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/IMG_0854.jpg?v=1757379467"},{"product_id":"10sa1223tz016","title":"2.24CT Sapphire: Yellow, Teal, and Green Modified Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Yellow, Teal, Green\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.24 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified emerald cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 10.28 x 5.77 x 3.48\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176950702140,"sku":"10SA1223TZ016","price":2030.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Tanzanian_Sapphire_2.24ct_Modified_Emerald_Cut_in_Vivid_Yellow_Teal_Green.jpg?v=1751524276"},{"product_id":"10sa1223tz017","title":"2.17CT Sapphire: Yellow Brown Orange Custom Wide Pear","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Dijon Mustard, Yellow Banana Nut Muffin\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.17 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom Wide Pear\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.98 x 8.54 x 3.15\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176950767676,"sku":"10SA1223TZ017","price":918.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/2.17CT_Yellow_Brown_Orange_Sapphire_Custom_Wide_Pear_Untreated_from_Umba_River_Tanzania.jpg?v=1761594378"},{"product_id":"10sa1223tz018","title":"2.14CT Sapphire: Peacock Yellow Teal Blue Parti Modified Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Peacock, Yellow, Teal, Blue, Parti\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.14 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified emerald cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.15 x 6.53 x 3.93\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176950800444,"sku":"10SA1223TZ018","price":1601.5,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/2.14CT_Sapphire_Peacock_Blue_Yellow_and_Teal_Parti_in_Emerald_Cut.jpg?v=1751524275"},{"product_id":"10sa1223tz019","title":"2.13CT Sapphire: Cabernet Modified Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Cabernet, Pink, and Reddish\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.13 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified Emerald Cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 7.90 x 6.22 x 4.20\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176950865980,"sku":"10SA1223TZ019","price":1008.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Cabernet_Sapphire_on_Lichen.jpg?v=1751524274"},{"product_id":"10sa1223tz020","title":"2.11CT Sapphire: Gray, Yellow, and Teal Custom Shield Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Gray, Yellow, Teal\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.11 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom shield cut\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 9.63 x 6.85 x 4.25\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176950898748,"sku":"10SA1223TZ020","price":2054.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/IMG-20240514-WA0041.jpg?v=1771267334"},{"product_id":"10sa1223tz021","title":"2.03CT Sapphire: Peach Custom Elongated Step Cut Portrait","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eColor: Peach\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWeight: 2.03 carats\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom elongated step cut portrait\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 11.08 x 6.03 x 2.74\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. 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Quashen International","offers":[{"title":"Default Title","offer_id":41176962236476,"sku":"10SA1223TZ032","price":563.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/1.71CT_Pepper_Yellow_Orange_Sapphire_Asscher_Cut_Untreated_from_Umba_River_Valley_Tanzania.jpg?v=1761592312"},{"product_id":"10sa1223tz033","title":"1.70CT Sapphire: Violet Brown Purple Modified Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire \u003c\/li\u003e\n\u003cli\u003eColor: Brown, Violet, Purple\u003c\/li\u003e\n\u003cli\u003eWeight: 1.70 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified Emerald Cut\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.33 x 5.55 x 3.41\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River Valley, Tanga Tanzania \u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb-Quashen","offers":[{"title":"Default Title","offer_id":41176962334780,"sku":"10SA1223TZ033","price":1615.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/1.70CT_Brown_Violet_Purple_Sapphire_Modified_Emerald_Cut_Untreated_from_Umba_River_Valley_Tanzania.jpg?v=1761773984"},{"product_id":"10sa1223tz034","title":"1.67CT Sapphire: Earthy Green to Grayish Red Color Change Custom Squared Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Earthy Green to Grayish Red Color Change\u003c\/li\u003e\n\u003cli\u003eWeight: 1.67 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom Squared Emerald Cut\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 6.80 x 6.08 x 4.48\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176962400316,"sku":"10SA1223TZ034","price":1135.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/1.67CT_Color-Change_Sapphire_Custom_Squared_Emerald_Cut_from_Umba_River_Tanzania.jpg?v=1760571396"},{"product_id":"10sa1223tz035","title":"1.57CT Sapphire: Orangish Red Precision Custom Oval Rose Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Orangish Ruby Red \u003c\/li\u003e\n\u003cli\u003eWeight: 1.57 carats \u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Custom Oval Rose Cut \u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 9.92 x 7.00 x 2.59 \u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania \u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176962433084,"sku":"10SA1223TZ035","price":2405.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/Vivid_Orange-Red_Sapphire_on_Flower_Bud_1.57ct_Unheated_Gem.jpg?v=1751524260"},{"product_id":"10sa1223tz036","title":"1.57CT Sapphire: Yellow Brown Modified Emerald Cut","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Brown, Yellow\u003c\/li\u003e\n\u003cli\u003eWeight: 1.57 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified emerald cut\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 8.57 x 5.57 x 2.92\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River Valley, Tanga Tanzania \u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. Quashen International","offers":[{"title":"Default Title","offer_id":41176962465852,"sku":"10SA1223TZ036","price":913.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0068\/2531\/2316\/files\/1.57CT_Brown_Yellow_Sapphire_Modified_Emerald_Cut_Untreated_from_Umba_River_Valley_Tanzania.jpg?v=1761591666"},{"product_id":"10sa1223tz037","title":"1.54CT Sapphire: Teal, Blue, and Gray Modified Asscher","description":"\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemstone: Sapphire\u003c\/li\u003e\n\u003cli\u003eColor: Teal, Blue, Gray\u003c\/li\u003e\n\u003cli\u003eWeight: 1.54 carats\u003c\/li\u003e\n\u003cli\u003eShape \u0026amp; cut: Modified Asscher\u003c\/li\u003e\n\u003cli\u003eDimensions (mm): 6.20 x 6.18 x 4.45\u003c\/li\u003e\n\u003cli\u003eOrigin: Umba River, Tanzania\u003c\/li\u003e\n\u003cli\u003eTreatment: None\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Caleb B. 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