These earrings are sterling silver and handmade by a Navajo artist. Each piece of jewelry is handcrafted and signed by Native-American artist and all pieces are made from sterling silver and high-grade natural stones. The stones used in these earrings are red & orange oyster shell, sleeping beauty turquoises, lapis and charolite. The earring are 1.5 inches in length. They come with a certificate of authenticity with any purchase.