The company sold more than $100 million in gold bars in a three-month period between September and November 2023. It's betting that platinum will do just as well.

The one-ounce platinum bar sells for $1,089.99. Sales of gold bars on Costco's website have previously sold out in minutes.

The big-box chain is now selling Swiss-made 1 oz. platinum bars for $1,089.99 on its website, but a Costco membership is required for purchase. The bar features Lady Fortuna, the Roman goddess of prosperity, according to the manufacturer’s website.