12.50 Carat Natural Loose Bicolor Tourmaline Stone Cushion Cut Afghan Gemstone

Mined from the famed pegmatite deposits of the Panjshir Valley, Afghanistan, this 12.50 Carat Natural Loose Bicolor Tourmaline features a dramatic, seamlessly blended color transition between vibrant forest green and soft blush pink. Precision-crafted into a regal cushion cut, its gently rounded outline and custom-proportioned pavilion facets maximize internal light reflection, generating lively, edge-to-edge scintillation across both color zones. The gemstone boasts superior eye-clean clarity and exceptional crystal transparency, allowing light to flood fluidly through its substantial 12.50-carat structure without dark extinction zones or cloudiness. Completely natural, unheated, and untreated, this investment-grade Afghan tourmaline combines substantial statement scale with a rare, distinct chromatic split, making it a show-stopping centerpiece for an executive cocktail ring, a bespoke pendant, or an elite fine gemstone portfolio.