4.90 Carat Natural Loose Bicolor Tourmaline Stone Emerald Cut Afghan Gemstone

Mined from the famous pegmatite fields of Afghanistan, this 4.90 Carat Natural Loose Bicolor Tourmaline showcases a mesmerizing natural color split, transitioning smoothly from a rich forest green into a soft, glowing peach-pink hue. Precision-cut into an elegant emerald cut, its clean geometric step facets produce a sophisticated "hall-of-mirrors" optical effect that accentuates the distinct dual-zone composition. The gemstone exhibits high eye-clean clarity and exceptional crystal transparency, allowing light to flow fluidly through its rectangular body without dark extinction zones or cloudy inclusions dulling its luster. Completely natural, unheated, and untreated, this substantial 4.90-carat Afghan tourmaline offers balanced proportions and striking finger coverage—making it an extraordinary centerpiece for an East-West ring setting, a tailored solitaire pendant, or a fine gemstone investment portfolio.