1.70 Carat Natural Loose Bicolor Tourmaline Stone Emerald Cut Afghan Gemstone

Mined from the famous pegmatite fields of the Panjshir Valley, Afghanistan, this 1.70 Carat Natural Loose Bicolor Tourmaline exhibits a crisp, distinct two-tone color transition within a single crystal, shifting effortlessly from a vibrant forest green to a soft blush-pink. Precision-crafted into a timeless emerald cut, its clean rectangular silhouette, clipped corners, and concentric step facets create a refined "hall-of-mirrors" optical effect that accentuates the stone's vivid color zoning. The gemstone boasts superior eye-clean clarity and exceptional crystal transparency, allowing light to traverse fluidly through its structure without dark extinction zones or cloudiness. Completely natural, unheated, and untreated, this pristine 1.70-carat Afghan tourmaline offers rare collector-grade color alongside versatile ring-ready proportions, making it a sophisticated centerpiece for an East-West set ring, a bespoke pendant, or an elite fine gemstone portfolio.