Liquidity matters when you're determining what assets to add to your portfolio — and that includes precious metals.

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

Commissions do not affect our editors' opinions or evaluations. The price of gold today, as of 8:17 am ET, was $2,667 per ounce. That’s down 0.05% from yesterday’s gold price of $2,668.