International gold price refers to the price of gold trading in the international gold market. The international gold price fluctuates every day, generally based on the London gold market. The international gold price has opening price, middle price and closing price.

The price of gold is calculated by weight. There are several weighing methods in precious metals and gemstones market. The most commonly used system is the troy system, and one troy ounce is about 31.10g; An ounce is about 28.35 grams.