To check the authenticity of the certificate issued by the National Jewellery and Jade Supervision and Inspection Center (NGTC), you only need to enter two parameters, namely "certificate number" and "anti-counterfeiting code" on the 360 Jewelry Guard. Please pay attention to the case-sensitive input. If there is a "-"sign in the certificate number, you must enter it and use the keyboard to subtract it.

360 Jewelry Guard supports four types of NGTC certificates: jewelry and jade jewelry appraisal certificate, inlaid diamond grading certificate, precious metal jewelry purity appraisal certificate and diamond grading certificate. You can refer to the following certificate samples to find out how to query the NGTC certificate:

I hope the answer can help you.