In addition to gold bars and coins, Costco offers a limited selection of precious metals online, including silver and ...

Another option is the 100-gram gold bar from Rand Refinery, which is also made of 24-karat gold. This bar is a bit heavier ...

100-gram, or one-ounce offerings. More than the collectors snapping up bars and coins from Costco, gold experts told Business Insider the real force pushing prices to new heights are central ...