Navajo handcrafted ring. Set in solid sterling silver with a single black onyx stone. The unique setting uses round silver balls that surround the oval stone framing it perfectly. The setting measures 1" 3/8 x 5/8". The split wire shank creates a comfortable fit and easily sized to fit most fingers. If you looking for the perfect black onyx ring, then this may be the one. NAVAJO HANDCRAFTED RING WITH BLACK ONYX & STERLING SILVER 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.