Genuine Tanzanite and Diamond 14k White Gold Ring. 6 Carat Genuine Tanzanite surrounded by. Genuine Tanzanite is investment grade. With brilliant flashes of deep-blue, violet, aquamarine, and silver. Diamonds are H to I Color. SI2 to I1 Clarity. Very good quality sparkling diamonds. Lovely gift box included. 10 × 8 mm (length × width). Refractive Index 1.69 – 1.70. Specific Gravity 3.35. Hardness 6.5 Mohs scale. The item “6.90 Ctw. Genuine Tanzanite and Diamond 14k White Gold Ring 5.8g Size 7.25″ is in sale since Wednesday, April 15, 2020. This item is in the category “Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone”. The seller is “darngoodgold” and is located in Ferndale, Michigan. This item can be shipped worldwide.