Sapphire and Diamond Ring. Metal type: 18K white gold stamped "18K 750", "S0.20 D0.12". Metal weight: 1.81 dwt with the gemstones in place. Dimensions: 20.97 x 21.08 x 2.34 mm, Design: Alternating Sapphire and Diamonds, alternating shapes, Round and Marquis, Milgrain border throughout. Sapphires: (6) Round faceted Sapphires, 0.20 ct total weight, A quality, Diamonds: (5) Round brilliant cut Diamonds, 0.12 ct total weight