This one-of-a-kind sapphire and diamond halo necklace is 16 inches in length, made of 18K white gold, and weighs 15.9 DWT (approx. 24.73 grams). It contains one pear cut, blue sapphire weighing 2.00 CTTW, 14 pear cut, blue sapphires weighing 4.12 CTTW, and 251 round G color, VS clarity diamonds weighing 3.17 CTTW.