These earrings are sterling silver and handmade by a Navajo artists. 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 sleeping beauty turquoise, lapis, with two shades of oyster shell (red and orange). The earring comes with a certificate of authenticity with any purchase. The other side has all plain silver handcraving. Stunning pair of earrings!