Natural 1.81 carat untreated tanzanite from Merelani Hills displaying teal, green and yellow hues in a custom brilliant trillion cut.
Close-up of a natural untreated 1.81 carat custom brilliant trillion cut tanzanite revealing vibrant teal, green and golden yellow pleochroic color.
Natural 1.81 carat Merelani Hills tanzanite shown on fingertips highlighting its custom trillion cut and rare teal, green and yellow coloration.
Watch this untreated 1.81 carat Merelani Hills tanzanite display remarkable shifts between teal, green and golden yellow through its precision custom brilliant trillion cut.
Experience the rare natural pleochroism of this untreated Merelani tanzanite as its custom brilliant trillion cut reveals vibrant flashes of teal, green and warm golden yellow.

1.81CT Tanzanite: Yellow Blue Green Custom Mix Brilliant Trillion Cut

Regular price$905.00
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  • Ethical sourcing

Specifications:

  • Gemstone: Tanzanite
  • Color: Teal, Green, Yellow
  • Weight: 1.81 carats
  • Shape & Cut: Custom Mix Brilliant Trillion
  • Dimensions (mm): [Length: 8.11mm, Width: 8.18mm, Height: 5.18mm]
  • Origin: Merelani Hills, Arusha Region, Tanzania
  • Treatment: None

In Natural Light

A palette more often found at sunrise than within a gemstone unfolds across this exceptional untreated tanzanite. Golden yellow gathers near the edges before giving way to cool green and tranquil teal, each hue shifting effortlessly as the stone catches the light. The result is an ever-changing landscape that feels both luminous and remarkably natural.

The distinctive trillion silhouette enhances this movement, directing light through broad, angular facets that create crisp flashes rather than overwhelming brilliance. Delicate transitions between warm and cool tones lend the gemstone an atmospheric quality, recalling sunlight filtering through fresh leaves before meeting the open sky beyond. Its transparency allows every color to remain clean and defined, inviting the eye deeper with each change of angle.

Untreated and sourced from the legendary Merelani Hills, this tanzanite represents one of the rarest natural color expressions found within the species—a gemstone whose beauty lies as much in its subtle complexity as in its rarity.

The Lapidary's Eye

The custom mixed brilliant trillion cut was designed to emphasize both geometry and color. Its broad triangular form provides generous windows for light while carefully arranged brilliant facets scatter reflections across the entire face of the gem. Rather than masking the natural pleochroism, the faceting encourages it, allowing teal, green, and golden yellow to emerge independently as the stone rotates.


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