6.00 Carat Round Cubic Zirconia 925 Silver Stud Earrings. Top Quality Nickel Free Settings. .50 Carat Each Stone 6.00 Carat Cubic Zirconia Stud Earrings Equal to Diamond Weight 3.00 Carat Each Stone. 925 Sterling Silver Nickel Free Rhodium Finish Top Quality Casting Settings Use By Jewelers To Set Actual Diamonds Includes 2 Post Backs and 2 Backings 925 Stamped