Truly elegant. This 10k white gold band sparkles with full-cut white diamonds (1/3 ct. t.w.) and black diamonds (1-5/8 ct. t.w.) for a look that's quite stunning. Size 5, 5-1/2, 6, 6-1/2, 7, 7-1/2 and 8. Almost all gemstones and blue and black diamonds have been treated to enhance their beauty and require special care. All gemstone carat weights (ct. t.w.), if mentioned, are approximate; variance may be .05 carat. CUSTOM RING SIZING IS FREE AT MACYS.COM! Size 7 is standard for women. Please note custom-sized rings may not be returned. Ring Sizer.