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Diamond grading system of GIA

May 25, 2021

Latest company case about Diamond grading system of GIA

We know that the 4C grading system of natural diamonds was first established and promoted by GIA system. GIA will issue an identification certificate for the diamonds it identifies. If cultivated diamonds are detected, GIA will issue a completely different synthetic diamond certificate and conduct laser engraving on the waist of the diamond.
For cultivated diamonds, the names of their color and clarity are different from those of natural diamonds. This is also an aspect of distinguishing natural diamonds from cultivated diamonds.

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