This earth-tone necklace and earring set is all sterling silver and handcrafted by one of our Navajo artists. The stones include tiger's eye, jasper, opal, white buffalo, coral, and turquoise. The necklace is around 18 inches long and can be adjusted. Each piece of Lazuli jewelry is handcrafted and signed by our Native American artists, and this set comes with a certificate of authenticity.