If you buy a diamond ring for the purpose of investment, the diamond ring certificate invoice is still more important. It is best to reissue a brand-new diamond ring certificate and invoice. If it is a diamond ring you usually wear, the loss of the certificate has no effect on the diamond ring itself. You can continue to wear it, so don't worry.

1.GIA certificate is the most authoritative certification certificate in the world. GIA does not provide certificate replacement service. If you know the certificate number, you can enter the number in GIA official website to learn the detailed data in the certificate.

If there is no GIA certificate before, it should be noted that it is more troublesome to reissue this certificate. GIA is a diamond appraisal agency in the United States, and generally does not directly accept personal diamond appraisal services. The consumer gives the diamonds to GIA Labdirect Container Transportation Company, which transports the diamonds to the relevant regional appraisal office.

It should be noted that GIA only provides the identification of loose diamonds, so there is no way to send the finished diamonds directly to GIA for identification and reissue certificates, and the diamonds need to be disassembled before that.

2. Re-issue the NGTC certificate.

NGTC is a national diamond ring inspection certificate (National Jewelry and Jade Quality Supervision and Inspection Center) and a national certification certificate. It is more authoritative in China, which can not only issue certificates for bare diamonds, but also identify finished diamond rings. It is relatively simple to reissue the NGTC certificate, and you can go directly to the branch office in your city for identification. The price is around 200 yuan per piece.