Many, usually many appraisal points will be set up in various jewelry markets. The authoritative ones are Huang Zhuang Junior and Peking University.

The charging standard is not exactly the same, which is related to the materials submitted for inspection, appraisal items and submitting units. Generally speaking, personal inspection will be more expensive. For the big card, it is about 100 yuan.

The appraisal time is related to the inspection organization. If you have your own equipment, you can get the test results within half an hour. If you just send it for inspection and then send it to the laboratory for testing, it will take longer, usually 3 days.