Nowadays, many live broadcast rooms are selling jewelry, so everyone must do their homework in advance and don't blindly pursue cost performance. The quality of products is as important as after-sales service. I recommend you to see the jewels of Lao Xu, a gemologist. All his products have supporting certificates to ensure fidelity and quality. In addition to reassuring products, after-sales service is also very reassuring. There is no reason to refund within 7 days, and life-long maintenance is supported, which is quite guaranteed.