Always & Forever Platinaire 1/5 Carat Round Diamond Solitaire Ring: * Sleek construction * Solitaire 1/5 carat * Polished finish * Suitable as an engagement ring 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.