14k White Gold Diamond, London Blue Topaz and Sapphire Necklace. 17 Round Diamonds have a total weight of 0.08 cts. Also, One Oval London Blue Topaz has a total weight of 0.90 cts. Also, 2 Sapphires have a total weight of 0.12 cts. Pendant is on an adjustable 16-18" 14k White Gold Cable Chain.