5/8 Carat T.G.W. Created White Sapphire and 1/4 Carat T.W. Black and White Diamond Sterling Silver Engagement Ring: * Crafted in sterling silver * 1/4 ct. t.w. * 5/8 ct. t.g.w. * Fancy black diamond color * Diamond color: G-H * 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.