6.50 Carat Natural Loose Bicolor Tourmaline Stone Cushion Cut Afghan Gemstone

Mined from the world-renowned pegmatite fields of Afghanistan, this 6.50 Carat Natural Loose Bicolor Tourmaline showcases a striking natural dual-tone transition, shifting seamlessly from a rich forest green to a warm pinkish-peach shade. Precision-cut into an elegant cushion cut, its soft rounded contours and deep brilliant pavilion faceting scatter light evenly across both color zones, creating lively reflections throughout the gem. The stone features high eye-clean clarity and exceptional crystal transparency, allowing light to flow fluidly through its body without dark extinction zones or cloudy inclusions dulling its luster. Completely natural, unheated, and untreated, this substantial 6.50-carat gem offers generous dimensions and a unique color combination, making it an extraordinary centerpiece for a custom engagement ring, a bespoke solitaire pendant, or an elite gemstone portfolio.