With such a large inventory of gold, we are unable to test each item's karat value, we cannot guarantee the karat value of our item listing. All my gold is 100% real natural gold.For Instructions to use the "Gold Test Acid Kit" to check gold purity on YouTube, How to Test Gold in Super HD Quality. The item "1 Gram Alaska Natural Gold Nuggets with BOTTLE Alaskan TVs Gold Rush (#1gB2)" is in sale since Sunday, September 3, 2017. This item is in the category "Coins & Paper Money\Bullion\Gold\Nuggets". The seller is "gemsale" and is located in USA. This item can be shipped worldwide.