BERRICLE Rhodium Plated Sterling Silver Zodiac 'Gemini' Pendant Set w/Swarovski Zirconia 16"+2" Extender METAL: rhodium plated silver, stamped 925, high polished finish, nickel free. PREMIUM QUALITY STONE: Main Stone: 0.25 carat round cut clear Swarovski zirconia (1mm) PENDANT: 0.8 inch in length, 0.8 inch in width, CHAIN: 16 inch in length, 2 inch extender, 1mm in width, lobster claw clasp GIFTING: Comes with FREE BERRICLE signature jewelry box and is ready for gifting.