I only know some big brands, such as Luk Fook, Chow Tai Fook, Zhou Shengsheng, Zhou Dasheng, Golden Supreme, Dai Mengde, Xie Ruilin and Lao Fengxiang. These are all big names in the jewelry industry. This is the top ten jewelry brands I found on the Internet. Not bad. The landlord can go and see for himself and learn how to distinguish the quality of jewelry. It's quite useful