10.00 Carat Natural Loose Bicolor Tourmaline Stone Emerald Cut Afghan Gemstone

Mined from the world-renowned gem pegmatites of Afghanistan, this 10.00 Carat Natural Loose Bicolor Tourmaline showcases a stunning dual-zone color split, transitioning seamlessly from a vivid mint green into a soft, delicate rose pink. Precision-crafted into an elegant emerald cut, its sleek rectangular silhouette and clean parallel step facets act as a frame, highlighting the sharp, natural color boundary and creating a refined "hall-of-mirrors" optical performance. The gemstone boasts superior eye-clean clarity and exceptional crystal transparency, allowing light to traverse fluidly through both color zones without dark extinction or internal veil interference. Completely natural, unheated, and untreated, this monumental 10.00-carat Afghan tourmaline pairs rare natural phenomena with impressive architectural scale, making it a collector-grade centerpiece for a bespoke cocktail ring, a high-jewelry pendant, or an elite gemstone investment portfolio.