The value of 1 ounce of gold varies daily based on the spot price, which is the current market price for immediate delivery of gold. The premium on 1 oz of gold is the additional cost over the spot price, often due to fabrication, distribution, and other costs. Costco is selling 1-ounce gold bars which are selling out fast, highlighting the demand for gold as a safe haven asset. Buying 1 oz gold coins or bars can be a good way to invest in gold, but investors should be aware of the real price and premiums involved.