Generally, anyone with high credibility can do it, and shopping malls should also do it. Just make sure that the seller has a quality inspection certificate and a jewelry appraisal certificate, and clearly support the store verification. Make it clear that if it is not the real goods, it is necessary to return them for free, that is, to keep these records, and you can complain later! I hope what my parents bought is real, and the price may be so high.