BERRICLE Rhodium Plated Sterling Silver Solitaire Stud Earrings Made with Swarovski Zirconia 6mm METAL: rhodium plated .925 sterling silver, stamped 925, high polished finish, nickel free. PREMIUM QUALITY STONE: Main Stone: 1.68 carat round cut clear Swarovski zirconia (6mm) MEASUREMENTS: 0.23 inch in length, center posts with butterfly backs Unisex. STYLE: These solitaire stud earrings flaunt timeless beauty with their recognizable delicacy. GIFTING: Comes with FREE BERRICLE signature jewelry box and is ready for gifting