IGL Report Types & Formats
Overview of official report categories issued by the International Gemological Research Laboratory.
Official IGL Report Formats
Each report format is tailored to specific examination requirements, gemstone categories, and trade documentation needs.
Gemstone Identification Report
Comprehensive report detailing mineral species, variety, natural vs. synthetic origin, optical measurements, and treatment observations. Accompanied by a specimen color photograph.
- • Format: Full-size Certificate & Compact ID Card
- • Best For: High-value rubies, sapphires, emeralds, alexandrites
Diamond Grading Report
Full characterization of diamond 4Cs (Carat, Color, Clarity, Cut), proportion diagram, symmetry assessment, fluorescence evaluation, and lab-grown screening confirmation.
- • Format: Full Security Dossier & Mini Card
- • Best For: Natural & Lab-Grown Diamonds
Treatment & Enhancement Report
Specialized report focusing on detecting thermal heating, fracture filling, beryllium diffusion, oiling, or artificial irradiation in colored stones.
- • Format: Analytical Summary & Spectrum Notes
- • Best For: Trade disclosure & auction documentation
Jewellery Examination Report
Documents mounted gemstones, total estimated stone weight, metal hallmark stamps, overall item photograph, and setting condition details.
- • Format: Mounted Item Certificate
- • Best For: Rings, necklaces, vintage & estate jewellery
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