The certificate number is unique and corresponds to the physical object or physical certificate in hand.

The confirmation method is weighing, accurate to the decimal point, and there is no possibility of fraud.

Certificate photos are not enough to explain anything, because the brightness of the shot light will be different from the real thing.

In addition, the certificate description is based on the colors tested in the laboratory. For example, some jadeites have no obvious emerald appearance, but there are colored roots in jadeite.

The certificate says green, but the real thing is not green. This is normal and understandable.

Please take the weight as the standard, and first see if this appraisal institution has the authority qualification of national inspection.

You can also send the full name of the appraisal institution.

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I hope the answer can help you.