Blue Nile Glossary
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  Report, Diamond Grading:  
  Each diamond at Blue Nile has had one of these reports created by a gemmologist, or gemmologists, from one of the world's foremost grading laboratories, either the Gemmological Institute of America (GIA) or the American Gem Society Laboratories (AGSL). The gemmologist has scrutinized the diamond and placed it under a microscope to analyse its dimensions, clarity, proportions, colour, finish, symmetry, and other characteristics and documented them in a report. All diamonds from Blue Nile come accompanied by one of the following specific types of reports; a GIA Diamond Grading Report, a GIA Diamond Dossier®, or an AGSL Diamond Quality Document. All Blue Nile Signature Collection diamonds come with GCAL reports.

For more information, read our education on Reports.

See also: GIA, AGSL, GCAL.


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