18K SAPPHIRE & DIAMOND RING: 18K yellow gold ring contains 1 oval mixed cut sapphire. WEIGHT: 1.00 Ct. Approx. 10 round brilliant cut diamonds. WEIGHT: .50 Ct. approx. Rated VS-SI in clarity and I-J in color. The gemstones are prong set. Weight: 3.2 grams. Size: 7