You can even purchase gold at Costco and other big retailers — but should you? Find out how to add gold to your portfolio ...

The Scarlet & Violet 151 mini tins have re-appeared at Costco locations in the US, but probably not for very long.

If you're considering purchasing gold, Costco may provide a convenient option to buy gold bars and coins. Bear in mind, though, that gold prices fluctuate and the metal's recent historic run doesn ...