Full quality assessment, colour grade and clarity plot. Identifies natural vs. treated colour. For loose coloured diamonds 0.15 carats or more.
Full 4Cs assessment with a plotted clarity diagram, geographic origin and GIA report number laser inscription. For loose colored diamonds only, weighing 0.15 carats or more that were submitted for rough analysis.
View Sample Report
Describes the coloured diamond’s colour grade and identifies natural vs. treated colour. For loose or mounted coloured diamonds of any size.
View Sample ReportGIA Add-On Services give you further information or security for your coloured diamond.
GIA Follow-Up Services verify, re-evaluate or update results from your original GIA Report.
GIA Specialty Services offer further analysis and information on your noteworthy coloured diamonds.
GIA Batch Services utilise GIA-developed technology to analyse and sort coloured diamonds based on varying test types.
Use GIA’s free online tool to estimate a cut grade.
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