9.90 Carat Natural Loose Bicolor Ametrine Oval Fancy Cut Brazilian Gemstone

Mined from the famous gem-bearing deposits of Brazil, this 9.90 Carat Natural Loose Bicolor Ametrine features a seamless dual-color partition within a single quartz crystal, blending the deep royal purple of amethyst with the warm golden-yellow of citrine. Precision-crafted into a captivating oval fancy cut, its tailored perimeter and customized faceting architecture interact with light to produce dynamic edge-to-edge brilliance, softly blending the two hues along the gem's central axis. The gemstone boasts superior eye-clean clarity and exceptional crystal transparency, allowing light to flood fluidly through its substantial 9.90-carat structure without dark extinction zones or cloudiness. Completely natural, unheated, and untreated, this pristine Brazilian ametrine pairs rare bi-color artistry with impressive statement proportions, making it an exquisite centerpiece for a bespoke cocktail ring, a custom statement pendant, or an elite fine gemstone portfolio.