These earring were 100% Navajo hand-made to showcase these gorgous stone os 'Sleeping Beauty' Turquoise with some brown and translucent matrix. The 'Sleeping Beauty' mine has been close for several years so there isn't anymore of this kind of turquoise being mined. These earrings are made from sterling sliver and have a good weight to them, coming to about 5 grams for each earring.