11.35 Carat Natural Loose Bicolor Ametrine Cushion Cut Brazilian Gemstone

Mined from the famous quartz deposits of Brazil (and originating from the classic South American pegmatite belt), this 11.35 Carat Natural Loose Bicolor Ametrine features a striking dual-zone composition transitioning smoothly from deep royal amethyst purple to warm golden citrine. Precision-fashioned into a magnificent cushion cut, its soft rounded corners and deep brilliant pavilion faceting scatter light evenly across both color zones, creating vibrant violet and honey-gold flashes across the crown. The gemstone exhibits outstanding eye-clean clarity and exceptional crystal transparency, allowing light to flow effortlessly through its substantial body without internal cloudiness or dark extinction. Natural and completely unheated, this impressive 11+ carat gem combines generous scale with brilliant scintillation, making it an extraordinary centerpiece for a statement cocktail ring, a bespoke halo pendant, or an investment-grade gemstone portfolio.