There shouldn't be. In fact, the difference is very limited. Thousands of pure gold is 99.9% gold, and thousands of pure gold is 99.99% gold. If calculated according to 300 yuan per gram, the price difference per gram is only 30 cents. The reason why thousands of gold are launched is because businesses see consumers' pursuit of perfection and want to make more money, so they have made thousands of gold. You should know that the price difference is at least 15 yuan per gram.