Natural saving Blue Opal gemstone handmade sterling silver mens, unisex

saving Natural Blue Opal gemstone (30 x 8mm) . Lobster clasp on a sterling silver chain. The pendant measures 2.4 inches (6 cm) from the bail to the end . The chain is 15.7 inches (40 cm ) long. The pendant and chain have been oxidized to create an antique finish.