The content on the website is the appraisal certificate of jewelry and precious metal products provided by Guangdong Quality Supervision and Inspection Station. I want to ask you about this certificate. I want to ask if this appraisal certificate is true. Judging from the comprehensive data, it is indeed the value of jade; And two signature appraisers. I don't think any appraiser will use his reputation to issue an untrue appraisal certificate. You can rest assured. What you bought is untreated natural jade.