1. The price of diamonds is lower than that of Diamond Bird, Jiuzuan and Kelan in China. Because Hong Kong's tax revenue is only 17%. Domestic import tax, value-added tax, consumption tax and income tax are about 58%.

2. Jintaifu Jewelry China after-sales service center; Shenzhen, Xiamen and Quanzhou are relatively few. There are 7 stores in Diamond Bird, 7 stores in Jiuzuan and 2 stores in Crane.