BERRICLE Rhodium Plated Sterling Silver Solitaire Stud Earrings Set w/Swarovski Zirconia Round 4mm METAL: rhodium plated silver, stamped 925, high polished finish, nickel free. PREMIUM QUALITY STONE: Main Stone: 0.5 carat round cut clear Swarovski zirconia (4mm). MEASUREMENTS: 0.16 inch in length, center posts with butterfly backs STYLE: Petite - Mini in size. STYLE: These solitaire stud earrings are perfect for any day to night look with their classic timeless charm. GIFTING: Comes with FREE BERRICLE signature jewelry box and is ready for gifting.