Native American Indian Navajo Sterling Silver and Onyx Ring Size 7.5. This is a great piece and the Onyx in this piece is beautiful. The measurements of the face are approx 1 inch tall and 1/2 inch wide. The total weight of this piece is 7.88 grams. It is in very good to excellent hand made condition as you can see by the photos. Please browse our store for more vintage jewelry and gifts under $50.