BERRICLE Rhodium Plated Sterling Silver Seahorse Pendant Necklace Set w/Swarovski Zirconia 18" METAL: rhodium plated silver, stamped 925, high polished finish, nickel free. PREMIUM QUALITY STONE: Main Stone: 0.03 carat round cut blue Swarovski zirconia (2mm) PENDANT: 2 inch in length, 0.75 inch in width, CHAIN: 18 inch in length, 1mm in width, spring ring clasp STYLE: This seahorse pendant necklace represents protection and camaraderie in an intricate marine inspired design. GIFTING: Comes with FREE BERRICLE signature jewelry box and is ready for gifting.