GIA and Independent Jewellers

GIA created the 4Cs of Diamond Quality and the International Diamond Grading System™.

In every corner of the world, virtually every diamond is described using the language GIA developed. Other reports from other entities have since made their way into the marketplace, but GIA is recognized as the original and unrivaled source for accuracy and integrity in diamond grading.

The GIA Diamond Grading Report contains scientifically determined information on diamond shape, color, clarity, cut, carat weight, proportions and finish. It also identifies any known treatments.The GIA Diamond Origin Report represents GIA’s latest innovation in diamond identification. In addition to a full, unbiased 4Cs assessment, the report also identifies the diamond’s country of origin.

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