Rhodium Plated Sterling Silver Solitaire Stud Earrings Set w/Swarovski Zirconia Round 6.5mm METAL: rhodium plated silver, stamped 925, high polished finish, nickel free. PREMIUM QUALITY STONE: Main Stone: 2 carat round cut clear Swarovski zirconia (6.5mm). MEASUREMENTS: 0.26 inch in length, center posts with butterfly backs STYLE: Dainty and elegant, this pair shines with the incredible halo coming from Swarovski Zirconia stones. GIFTING: Comes with FREE BERRICLE signature jewelry box and is ready for gifting.