Gold Chain & Pearl NecklaceThis gold necklace features a mixture of freshwater pearls that is perfect to wear alone or to layer with other necklaces. Length: 16. 5 in Extension chain: 2 in Metal pendant diameter: 0. 47 in (1. 2 cm) Weight: 0. 9 ounce (25. 9 g) 1. Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide. 2. While wearing the pearl necklace, avoid exposure to the sun and contact with highly volatile