What services does the GIA (Gemological Institute of America) provide besides the common thorough diamond grading report?

Along with the GIA Diamond Grading Report the GIA provides a Diamond Dossier Report, which is cheaper than the diamond grading report and includes less parameters of examination. Diamonds in the size range of 0.15-1.99 carats can undergo the Diamond Dossier examination. The GIA also offers a special grading report for colored diamonds (which is called The GIA Colored Diamond Grading Report), based on a an examination of a diamond's color degree (for fancy colored diamonds, not light yellow Z color graded diamonds). Additional services, as identifying a gem material, laser inscription, verification of a GIA report (often requested by diamond consumers who don't trust the authenticity of a GIA report, which they received from a diamond vendor) and gemstone grading updates are also offered.

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A diamond owner can also check the GIA database to see the original grading report of a gemstone, in case he has the certificate ID number.

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