Ultra-dazzling round-shape diamonds are arranged in halo clusters in these beautiful stud earrings (1 ct. T. W. Set in filigree embellished white gold. Approximate diameter: 1/2". 1 Carat Diamond Earrings. Diamond Color Rating Code: H-I. Diamond Clarity Rating Code: I2-I3. Diamond Shape: Round. Push Back Closure. PLEASE NOTE: A pair of 1 carat total weight stud earrings = approximately 1/2 carat each stud. After delivery, visit a Macy's store with your dated receipt and jewelry purchase to sign up. Boxes, or APOs. Almost all gemstones 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.