Rhodium Plated 925 Sterling Silver Premium Eq Star 0.75 Ct. Engagement Ring This eye catching 0.75 carat prong set enengagement ring is the perfect gift for your special someone. Band dimension: 2 mm wide protects jewelry from tarnishing and also creates a lustrous white appearance. Jewelry is nickel free, hypoallergenic, and irritation free. All Blue Box Jewels products come with a complimentary gift box.