5 Carat Princess Cushion Cut Grade AAAAA CZ Engagement Ring & Wedding Band Set. Grade AAAAA Premium Cubic Zirconia. Highest Quality CZ. Available in Sterling Silver, Rhodium Plated or Gold Plated. Make your choice. Stone settings are exact method used in actual diamond rings. Matching Earrings and Bracelets Available. Click PremiumCZ above the Title. Matching Earrings and Bracelets Available. Click PremiumCZ above the Title.