A beautiful example of top quality Natural Mexican Fire Opal, this cherry red gem has a fantastic play of color. Formed in the harshest environments that were the ancient volcanoes of Mexico, this Opal at 22.90 carats is surely a once in a lifetime gem. Custom set in a piece that is versatile for every wearer as a ring or a necklace. Crafted in 18k yellow gold and having a total carat weight of 3.05 carats in natural Diamonds. Matching Screwdriver Included!