Discover this exceptional 15.37-carat natural rubellite tourmaline, a premium gemstone prized for its vivid pink coloration and untreated authenticity. Mined in Nigeria, this cushion-shaped stone features precise faceting across its 17.9 x 12.6 x 9.5 mm dimensions, delivering impressive brilliance and depth. With included clarity that reflects the stone's natural character, this gemstone is ideal for bespoke jewelry creations and serious collectors seeking genuine, high-quality tourmaline.