Monica Vinader 18ct yellow gold-plated vermeil recycled sterling-silver and green onyx necklace100% sterling silver; 100% 18ct yellow gold-plated vermeilGreen onyx stoneSpring-ring clasp fasteningBeaded chain, linked design, polished finish, adjustable lengthChain type: bead chainChain length: 46cmPlease use a soft, dry polishing clothFive-year manufacturer's warranty