Generally, it is better to go in non-weekend afternoons. There are no wholesale people and few individual customers, so you can bargain well.
Among them, Panjiayuan and Xinjiekou have appraisal points of jewelry appraisal institutions. After you buy it, you will spend about 10 yuan to ask your boss to prove it for you, which is basically true.
Even if you go to big shopping malls to buy jade, the appraisal certificate is made by these institutions, and many jade are also wholesale from these places.
In addition, in fact, it is more convenient to buy genuine products online and shop around.
I hope to have some reference for you. Good luck!