StarGems Natural Ruby Zoisite 925 Sterling Silver (Unique Design Vintage style) Ring US Size 7 100% Solid Sterling Silver with 925 stamp, Total Weight(grams): 13.1g Guaranteed authentic gemstone(s), Exclusive craftsmanship and styling, actual item pictured, Main stone size: 15.3 x 20.8mm Exclusive craftsmanship and styling, actual item pictured Free Anti-Tarnish Silver Polishing Cloth ships from Hongkong via USPS First-Class Package International Service with Tracking Number