I guess you are in Beijing. You can consider doing it at China Jewelry Inspection and Appraisal Center, No.2 Datun Road, North Beach. If you think it's beryllium therapy, you can talk to the people they accept and then do targeted tests. But it's the color you said, for example, pigeons are red, red. There is no fixed standard for this evaluation, which is difficult to define.

The appraiser doesn't know much about appraisal, but there is an appraiser. You can inquire when you do the appraisal, and you should be able to find it. At present, 70-80 people in China have appraiser qualification certificates. Don't be cheated.

Merchants are very troublesome. In fact, what they are selling now is treated, but beryllium treatment is really deceptive. Belong to an unacceptable category.