Both 1-gram and 1-ounce gold bars can be a smart investment, but one may be the better option in today's market.

1-gram vs. 1-ounce gold bars: Which is a better investment this April? There is no uniform answer to this question as each investor's financial situation differs.

As of June 2, 2025, the Rand Refinery 1-ounce bar is listed at $3,369.99, while the PAMP Suisse version is priced at $3,389.99. That marks a 73% and 71% increase, respectively, in less than two years.

“The wholesale retailer began selling gold online in September and 1 oz. gold bars on Friday were going for $2,069.99, with a limit of two bars per Costco membership,” CNN says.

Here's how much more a 1-ounce gold bar purchased at Costco in June 2024 could be worth today, based on the listed purchase price and Tuesday's opening spot price.

But one of the more popular options is gold bars, which are available in different sizes, including 1-gram and 1-ounce gold bars.

Columnist Tim Rowland believes Costco's latest multi-million dollar idea is a boon for the company, but not so much for you.