The ounce is the international unit of spot gold, and the gram is the pricing in China. According to the current foreign exchange rate, 1 USD can be converted into about 6.4 RMB, and 1 oz is equivalent to 31.1.035g.. For example, today's gold is 1.050 USD/oz. That is: 1050 times 6.4 divided by 3 1. 1025 equals 2 16.05 yuan a gram. The average bank's gold price is around this price. Of course, this price is for reference only. When buying gold jewelry or gold things, the price will be different, and the jewelry in each gold shop must be processed. hope this helps