The picture has been enlarged to show detail. Natural gold nuggets never have a fixed karat value. Alaskan gold nuggets are all individually different from 17-22k, mostly 20-22k. Natural gold never comes with 24k. 24k Pure gold is Man-Made.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. Instructions to using the "Gold Test Acid with Testing Stone Kit" to check gold purity on YouTube: Youtube. The item "1.4620 Gram Alaska Natural Gold Nugget - (#02511)" is in sale since Friday, June 1, 2018. 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.