Personalized Diamond-Accent Sterling Silver Secret Expressions Birthstone and Name Couple"s Ring: * Sterling silver * Add 2 birthstones * Add 2 names, up to 10 letters each * Available in full sizes 6-9 Every piece of Walmart jewelry passes rigorous inspection at our Quality Assurance labs. So you can buy with confidence — guaranteed. Learn More Learn about diamonds, including the 4 C"s — Color, Cut, Clarity and Carat Weight.