Material: High-Quality Solid 925 Sterling Silver (Nickel-Free and Lead-Free)Stones: Cubic ZirconiaColors: Silver, Gold, and Rose Gold Sizes: US 4, 4.25, 5, 5.25, 6, 6.5, 7, 7.5, 7.75, 8, 8.5, 9, 9.5, 10, 10.75, 11, 11.25 (UK H, H1/2, J1/2, K, L1/2, M1/2, N1/2, O1/2, P, P1/2, Q1/2, R1/2, S1/2, T1/2, V, V1/2, W) or Open Back (Adjustable and Suitable for US Sizes 3-10)Size 4 = 14.88mm in Diameter or 46.8mm in CircumferenceSize 4.25 = 15.1mm in Diameter or 47.4mm in Circumference Size 5 = 15.7mm…