Crafted with tarnish-free gold, THE WILLOW GREEN OPAL NECKLACE combines elegance and durability. Enjoy the classic beauty of this necklace without worrying about discoloration or maintenance. Perfect for any occasion, this necklace is an invaluable addition to any jewelry collection. thick layer of gold on 316L stainless steel 100% waterproof Natural gemstone Hypoallergenic Net weight 2.2g Chain dimensions 38cm + 5cm pendant 4mm 2 YEAR QUALITY GUARANTEE