One Pair of Ladies 14k White Gold London Blue Topaz, Diamond and Sapphire Earrings. 2 Emerald Cut London Blue Topaz Stones have a total weight of 0.96 cts. Also, 24 Round Diamonds have a total weight of 0.06 cts. Also, 2 Baguette Sapphires have a total weight of 0.16 cts.