This necklace and earring set is all sterling silver and handcrafted and signed by one of our featured Navajo artisans; it comes with a certificate of authenticity. The inlay features Sleeping Beauty turquoise, mountain turquoise, red and orange oyster shell, lapis, sugilite, and gaspeite. A one-of-a-kind set. The necklace is around 18 inches and can be adjusted.