Keepsake Oriana 1 Carat T.W. Diamond 10kt Yellow Gold Engagement Ring: * 1 ct. t.w. * Marquise-shaped center * Baguette and round-cut diamonds * 10kt yellow gold * Available in sizes 5-8 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.