This one-of-a-kind oval emerald and diamond necklace is 18 inches in length, made of 18K white gold, and weighs 30.8 DWT (approx. 47.9 grams). It contains 45 oval cut, emeralds weighing 20.18 CTTW and 722 round G color, VS clarity diamonds weighing 5.33 CTTW.