IGI vs. GIA, Whats the difference?
The IGI, International Gemological Institute, issues a Grading Summary, which is an independent verification of a piece of jewellery suitable with your receipt of purchase for insurance purposes. The GIA, Gemological Institute of America, issues Diamond Grading Reports. This is a complete technical description of the diamond as it is loose, prior to being mounted in the setting. Neither the Grading Summary nor the GIA assign any monetary value to the diamond, just specific measurements and quality grades, identifying a particular diamond versus any other. If a diamond has a Diamond Grading Report from the GIA, the IGI will reference that report in its Grading Summary.
