Turn heads with this sparkling duo. City by City rings feature an engagement-style ring with sparkling, round-cut cubic zirconias (7-3/8 ct. t.w.) and a matching cubic zirconia band. Crafted in silver-tone mixed metal. Size 7 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 not available for this item. Ring Sizer.