A beautiful Mexican Fire Opal (also known as a Cantera Opal) has been set in a fine silver bezel on a sterling silver backplate and sits on a wide triple wire band. This ring is a size 8.75. It has been oxidized and tumbled twice for durability and shine. My maker’s mark is on the back of the ring. This stone has lovely fire inside, flashing bright orange. Made entirely by my two hands in my little blue church house studio..