The styles of appraisal certificates issued by different appraisal institutions are different, so we should pay attention to the contents of a national jewelry appraisal certificate. Due to different testing units, the format of the certificate may be different, but the basic contents contained therein are roughly the same. The standard appraisal grading certificate shall include the following contents: the name of the certificate, physical parameters such as cutting shape, size, weight, clarity, color, cutting standard, brief comments, attached photos, signature of appraiser (qualification, DGA, GIA, FGA or HRD), signature and qualification of auditor, name and address of appraiser, special seal for appraiser, date of signature, etc.

The anti-counterfeiting inks used in the jewelry anti-counterfeiting appraisal certificate are: fluorescent ink, watermark ink, color-changing ink, glare ink, photosensitive ink and OVI ink. Anti-counterfeiting certificates generally use four-color plus spot color printing or gravure printing. The anti-counterfeiting methods used in certificates mainly include: flower string, lace, relief, microfilm, invisible watermark anti-counterfeiting, ultra-precision printing, color fiber anti-counterfeiting, anti-copying flower string, anti-scanning, etc.

The anti-counterfeiting measures used in the appraisal certificate itself are very important and have special patterns. The anti-counterfeiting design of special technology makes it difficult for jewelry appraisal certificates to be copied, which can help businesses stop the rampant occurrence of counterfeit and shoddy products and protect consumers' rights and interests from infringement to the greatest extent.