I'm a beginner in jewelry, and I only know a few things. The following is what I know; Chaohongji jewelry is a new kind of jewelry. Personally, I don't think it has any characteristics (all goods are shipped in the same place). Liufu's diamond is his family history, but it is also a new brand (but diamond has its own factory). Xie Ruilin focuses on diamonds, Zhou Shengsheng is gold, and Chow Tai Fook started with gold, getting better and better. It has a complete system (old salary change business). I will not analyze others. Some are too bad, others don't understand.