Natural Ruby and Blue Sapphire Pendant with Necklace Sterling Silver925 with Whitegold Plated.Natural Ruby and Blue Sapphire Pendant with Necklace Sterling Silver925 with Whitegold Plated. Metal: 925 Sterling Silver. Stone : Natural Ruby 7*5 mm Stone : Natural Blue Sapphire 5*3 mm We use top quality materials. Our metals are water safe After getting your jewelry in contact with the water, please clean it and make sure to D R Y it well afterward and store it in a dry place (avoid humidity). You need to keep your jewelry away from chemical