3.90 Carat Natural Loose Bicolor Ametrine Stone Baguette Cut Brazilian Gemstone

Mined from the famous gem-bearing deposits of Brazil, this 3.90 Carat Natural Loose Bicolor Ametrine displays a sharp, perfectly balanced dual-color split within a single quartz crystal, pairing the rich royal purple of amethyst with the warm golden-yellow of citrine. Precision-crafted into a sleek baguette cut, its clean geometric silhouette, crisp parallel facets, and long step cuts deliver an architectural, mirror-like optical clarity that emphasizes the stone's distinct color zoning. The gemstone boasts superior eye-clean clarity and exceptional crystal transparency, allowing light to traverse fluidly through its crystalline body without dark extinction zones or cloudiness. Completely natural, unheated, and untreated, this pristine 3.90-carat Brazilian ametrine offers rare bi-color symmetry with ideal ring-ready proportions, making it a sophisticated centerpiece for an East-West set ring, a custom modern pendant, or an elite fine gemstone portfolio.