Navajo handcrafted ring. Set in solid sterling silver with flower design elements on the sides of the ring. Genuine black onyx stone. This a the only ring of this type we have offered! The oval setting measures 3/4"x5/8". Beautiful and comfortable to wear. NAVAJO HANDCRAFTED RING IN STERLING SILVER & ONYX Onyx is a chalcedony quartz that is mined in Brazil, India, California, and Uruguay. It has a fine texture and black color; however, some onyx also displays white bands or ribbons against a black or brown background and this variety is known as sardonyx. The name comes from the Greek word onyx.