16.40 Carat Natural Loose Bicolor Ametrine Stone Pixel Cut Brazilian Gemstone

Mined from the famous natural quartz veins of Brazil, this 16.40 Carat Natural Loose Bicolor Ametrine displays a magnificent, seamless color partition—combining rich imperial purple amethyst with warm, sunlit golden-yellow citrine within a single crystal. Precision-crafted into an innovative and contemporary pixel cut (chess-board step faceting), its intricate geometric facet structure creates a mesmerizing optical mosaic that disperses light in crisp, shimmering squares across the gem's crown. The gemstone boasts superior eye-clean clarity and exceptional crystal transparency, allowing light to flow fluidly through its substantial crystal body without internal cloudiness or dark extinction zones. Completely natural, unheated, and untreated, this impressive 16.40-carat Brazilian gem merges grand scale with avant-garde lapidary artistry, making it a spectacular centerpiece for a custom statement ring, a high-fashion pendant, or a collector's gemstone display.