10K SAPPHIRE & DIAMOND NECKLACE: 10K white gold necklace dangles a single pear cut sapphire. Weight: .50 Ct. Approx. 19 round single cut diamonds. Weight: .10 Ct. Approx. I1 in clarity and I-J in color. The sapphires and diamonds are prong set. Length: 18'' Weight: 4.7 grams.