If I remember correctly, it should be Xi 'an University of Economics and Business in Xianyang.

Private tuition for three years is not very low (about 6000 a year).

If you want to be an authoritative jewelry appraiser, you'd better go to Beijing for training and study.

Specifically, you have to go to school for consultation!

But if you are in your own hobby, then there is nothing!

I hope it helps you! Finally, I wish you success.