Buy Gold Bullion & Gold Coins Direct From the U.S. Gold Bureau. Bullion Gold Bar .999+ Pure - CMX (Sealed) (1.000 oz.) 1 troy ounce Gold Bullion Bar Pure gold bars are easily the most recognized form of gold bullion in the world today. Bullion Direct is pleased to offer gold bars from a variety of manufacturers from around the world. We have classified these top-tier manufacturers as CMX - and we try to hold the bars sold in this category to the same standards as the COMEX market. Due to the ever-fluctuating market, we cannot guarantee any particular brand, only that the bars and packaging are in good order. Our choice of brands. Bullion Direct verifies all gold bars that come through our facility as being authentic.