Alder cone Necklace is all Sterling Silver and on a 18" sterling silver chain. Each pendant is made from a different cone and is 925 pure silver throughout the piece. The cone was molded and then burned out. The cones are picked in north Idaho. The size varies. They range from 5/8" to 3/4" x 1/2". Each item is gift boxed. Check out the mating Earrings.