Is Liaoning Gemstone Quality Supervision and Inspection Center formal? Is this proof true? It seems a bit of a loss to buy more than 300.
This testing center is formal, and it is an appraisal institution with national jewelry testing qualification. There is no problem with the jade certificate detected. However, Hetian jade does not refer to Hetian jade produced in the national standard, which only shows that the pendant is really jade, and the price depends on the quality and technology of jade.