This Sapphire and Diamond Tennis Necklace is 17 inches in length. It is made of 18K white gold and weighs 26.8 DWT (approx. 41.67 grams). It contains 69 radiant cut blue sapphires weighing 25.60 CTTW and 1,242 round cut diamonds G color, VS clarity weighing 4.66 CTTW.