18K TOURMALINE & DIAMOND RING: 18K yellow gold ring contains one oval pink tourmaline. WEIGHT: 5.00 Ct. Approx. 48 round single cut diamonds. WEIGHT: .25 Ct. Approx. Rated VS-SI in clarity and G-H in color. The tourmaline and diamonds are prong set. Weight: 3.8 Size: 7.5