Gold prices are soaring to new highs, making it more important than ever to ensure the jewelry or coins you purchase are genuine. At first glance, fake gold can look just as shiny and appealing as the ...

Gold purity is expressed in karats, with pure gold being 24 karats (24K). The karat system indicates the ratio of gold to other metals in an alloy. For example, 18K gold contains 75% pure gold and 25% ...