3 things Costco shoppers should know before buying gold bars

Source: Business Insider

An employee holds gold pieces, each weighing 100 grams, at the state-owned mining company PT Antam Tbk metal refinery in Jakarta, July 13, 2012. REUTERS/BeawihartaCostco sells an estimated $200 million worth of gold and silver bars per month. Gold expert Taylor Huff says with the popularity, some buyers might not know what to expect.