All of our merchandise is guaranteed to be 100% authentic! The item "NATURAL NOT ENHANCED SOLID BLACK OVAL OPAL GEMS MATCHED 12.48 CARATS TCW" is in sale since Friday, December 26, 2014. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Opal\Other Opals". The seller is "goldandsilvergemz" and is located in Palm Desert, California. This item can be shipped to United States.