This necklace is 18 inches in length, made of 14K yellow gold, and weighs 3.1 DWT (approx. 4.82 grams). It contains one round blue sapphire weighing 0.15 CTTW, 106 single cut cut, diamonds weighing 0.23 CTTW, 12 single cut cut, black color, diamonds , and 94 single cut cut, G color, VS clarity diamonds . The chain is adjustable.