Analysis & Grading

Natural Colored Diamond Reports & Services

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Colored Diamond Grading Report

Full quality assessment, color grade and clarity plot. Identifies natural vs. treated color. For loose, natural, colored diamonds 0.15 carats or more.

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Colored Diamond Origin Report

Full 4Cs assessment with a plotted clarity diagram, geographic origin and GIA report number laser inscription. For loose, natural, colored diamonds only, weighing 0.15 carats or more that were submitted for rough analysis.

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Colored Diamond Identification and Origin Report

Describes the color origin (natural vs. treated) for loose or mounted, natural, colored diamonds of any size. Color grade included for loose colored diamonds.

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Add-On Services

GIA Add-On Services give you further information or security for your natural colored diamond.

Follow-Up Services

GIA Follow-Up Services verify, re-evaluate or update results from your original GIA Report.

Specialty Services

GIA Specialty Services offer further analysis and information on your noteworthy natural colored diamonds.

Batch Services

GIA Batch Services utilize GIA-developed technology to analyze and sort natural colored diamonds based on varying test types.

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