3.17 ct HKD Certified Bi Color Octagon Cut (12 x 7 mm) 100% Natural (Un-Heated) Watermelon Tourmaline Gemstone FREE HKD Certificate VS-SI Quality 100% Natural (Un-Heated) Orgin from Brazil Size (L x W x D): 11.69 x 7.05 x 3.96 mm Shape: Octagon, Color: Bi Color Clarity: VS-SI, Treatment: 100% Natural (Un-Heated), Origin: Brazil, Hardness: 7.5 30 Day No questions asked Return Policy