1. Diamonds can be appraised by different brands of diamond shops or jewelry stores, but it is best to go to the local jewelry appraisal center for appraisal and issue an appraisal certificate. Personal identification can also be done at home. The real diamond has a smooth surface and a high refractive index, and tiny natural damage can be seen under a ten-fold mirror.

2. Method of identifying diamonds: You can go to different brands of diamond shops to find a special clerk to help identify them, or you can go to a jewelry store for identification, but some jewelry stores will refuse to identify them because they are not their own customers. If you want to get a professional appraisal certificate, you'd better go to the local jewelry appraisal center for appraisal.

3. If it is an individual appraisal, it can also be conducted at home. First of all, the hardness of diamonds is very high, so the surface of real diamonds is generally smooth and there will be no damage and wear marks. At the same time, the refractive index of the diamond is so high that you can't see the words and images behind the diamond.

In addition, if conditions permit, you can observe with a magnifying glass more than ten times. Real diamonds can see tiny natural damage under a magnifying glass, but if they are artificial diamonds, they will be extremely smooth.