StarGems(tm) Natural Botswana Agate Unique design 925 Sterling Silver Ring Size 7 100% Solid Sterling Silver with 925 stamp, Total Weight(grams): 4.9g Guaranteed authentic gemstone(s), Main stone size: 12 x 16mm Exclusive craftsmanship and styling Free Anti-Tarnish Silver Polishing Cloth ships from Hongkong via USPS First-Class Package International Service with Tracking Number