We test all metals with nitric acid and verify with our Niton Xl2 metal alloy detector. We test all gemstones with a Presidium Gem Tester. Unfortunately, gem testers will not differentiate natural gemstones from their synthetic counterparts; this being the case we cannot guarantee natural stones unless we specifically state that it is natural in the listing.Many gemstones' properties overlap and could potentially be one of many variety of gemstones. We do our best, based on the tester readings, to determine whether or not the item is a specific gemstone; however we are not GIA certified gemologists. We encourage customers to verify what we sell if there are any questions. The item "14k Yellow Gold Incised Black Enamel Wide Wedding Band/Ring Size 5.75" is in sale since Monday, December 9, 2019. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Precious Metal without Stones". The seller is "jewelry-is-me" and is located in Crumpton, Maryland. This item can be shipped to United States, all countries in Europe, all countries in continental Asia, Canada, Mexico, Brazil, Australia.