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The GIA is the Gemological Institute of America. It is the most widely respected body that governs the grading and the classification of diamonds. It is a non-profit organization that is in place as the standard for the grading of diamonds.
GIA grading report
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The GIA Diamond Grading Report includes an assessment of a diamond’s 4C’s – colour, clarity, cut, and carat weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions. For standard round brilliant cut diamonds falling in the D-Z colour range, the report also includes a GIA Cut grade.
The GIA Laboratory issues diamond grading reports for loose, natural diamonds in the D-Z colour range that weigh 0.15 carats or more. GIA Diamond Grading Reports are not issued for synthetics, simulants, mounted diamonds or those that have undergone unstable treatments, such as fracture filling or coating. And while reports may be issued for diamonds that have been laser drilled or HPHT processed, these stable treatments are prominently disclosed on the report.
IN SUMMARY THE GIA REPORT TELLS YOU:
- Date of grading
- Report Number
- Laser Inscription Registry
- Shape and Cutting Style
- Carat Weight
- Clarity Grade
- Cut Grade
- Plotting Diagram
- GIA colour and Clarity Scales
- Security Features