14k Solid Yellow Gold Natural Brown Fire Opal Rare Design Setting. Offer Up For Sale Is This Unique Setting 14K Solid Yellow Gold Natural Brown Fire Ethiopian Opal Gemstone Ring. The Fire Patterns Of Red, Green And Orange Colors The Ring Is Currently A Size 6.75 Thank You For Looking At This Listing. Get images that make Supersized seem small.Tailor your auctions with Auctiva's. The item "14k Solid Yellow Gold Natural Brown Fire Opal Rare Design Setting" is in sale since Thursday, March 29, 2018. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "only1vintage" and is located in Chicago, Illinois. This item can be shipped worldwide.