Here is the sample of the Chinese version of certificate, which is free.

 The key factors in this certificate:

 Picture & Total Mass, which confirm you that the certificate is responsible for the certain item you purchase.

 A Jade in the Result Of Identification, which confirms you that the item is all natural, none treatment.

 Refractive Index(R.I.) is 1.66, which confirm you that this item is jadeite jade instead of other gem.

 Density(Specific gravity) is 3.34, also confirms you that this item is jadeite jade instead of other gem.

 You may check the certificate at web: www.zhjcs.cn ,and key in the CERT.No. to find the result.