Plutus Brands 925 Sterling Silver Platinum Finish Princess Solitaire Engagement Ring 1 Carat weight- Size 5 Stones are firry and filled with sparkle. Center Stone Cubic Zirconium. Center stone carat weight: 1. Nickel Free Sterling Silver. Total carat Weight: 1. Ring Size: 5. Stone cut: Princess. Gender: Women. Country of orgin: China. Color: White.