If it is gold and silver jewelry, it is ok, but if it is jade, especially if there is any jewelry quality supervision and testing center, it is basically a cottage institution. People who don't know jade should not buy this kind of jade casually without official approval.

Since you mentioned the identification of jadeite, I will simply tell you that jadeite is mainly divided into nephrite and jadeite. Nephrite is represented by Hetian jade, and jadeite is represented by jadeite. Forget about jade for the time being. The really better jadeite is in ten thousand units, and Hetian jade is also graded. There are many details to pay attention to. I am very interested in talking about jade.