BERRICLE Rhodium Plated Sterling Silver Halo Stud Earrings Set w/Swarovski Zirconia Round 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), Side Stones: 0.33 carat round cut clear Swarovski zirconia (1mm). MEASUREMENTS: 0.4 inch in diameter, center posts with butterfly backs STYLE: These halo stud earrings sparkle and shine in spellbinding tiers of elegant brilliance. GIFTING: Comes with FREE BERRICLE signature jewelry box and is ready for gifting.