1 Carat T.W. Black Diamond Three-Piece Sterling Silver Bridal Set: * Crafted in sterling silver * 1 ct. t.w. * Fancy black diamond color * 5mm center stone * Round-cut center diamond * Available in sizes 5-9 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.