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This 4.24 carat natural parti sapphire from Diego, Madagascar displays an extraordinary blend of green, teal, and blue that shifts dynamically across the stone as it moves through different lighting conditions. Expertly fashioned in a precision oval mixed cut, the sapphire combines strong brilliance with excellent color distribution, allowing flashes of deep teal, ocean blue, and vivid green to appear throughout the gem. Completely untreated, this sapphire showcases the natural beauty and complexity that make Madagascar parti sapphires highly sought after by collectors, jewelers, and clients seeking a truly unique center stone. Its substantial size, exceptional color zoning, and elegant proportions make it an outstanding choice for a custom engagement ring, heirloom-quality jewelry, or a one-of-a-kind collector gemstone.