Diamond Grading Reports: There are many recognized gemological laboratories that can grade your diamond for a fee. The most well know is the GIA, Gemological Institute of America.
Diamond Grading Reports: Documents the various characteristics of the diamond and uses these characteristics to assign it value and a level of rarity.
Unbiased diamond grading reports are offered with every Blue Nile diamond.
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FAQ
Find answers to frequently asked questions about diamonds.
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Today's industry leaders in diamond grading reports include the Gemological Institute of America (GIA), the American Gem Society (AGS) the European Gemological Laboratory (EGL), and the International Gemological Institute (IGI).
Diamond certificates, also known as diamond grading reports, are offered by independent gemological laboratories such as GIA (Gemological Institute of America) and EGL (European Gemological Institute).
For a round diamond, gemologists calculate table percentage by dividing the diameter of the table, which is measured in millimeters (this millimeter measurement does not appear on diamond grading reports) by the average girdle diameter (an average ...
For over 30 years, IGI has provided the fine jewelry community and consumers with a broad range of services including: independent diamond grading reports, colored stone reports, identification and appraisal reports, ...
For brief explanations of the specific terms used on GIA Diamond Grading Reports, visit the page that explains the new report formats and services.
Go here to understand and decide about the 4 Cs.
Had Pincione been aware of the "falsification of entries in the diamond grading reports" he would "never have settled his defamation action or signed the release set forth herein," the court documents report.
Professional jeweler's society with a renowned laboratory that grades diamonds and provides diamond grading reports.
American Standard cut
Ideal cut ...
While not all labs have adopted SI-3, EGL USA began using it on its diamond grading reports in 1997.
GIA As the creator of the International Diamond Grading System, GIA has literally set the industry standard for diamond grading and gemological identification. The Institute's diamond grading reports are regarded throughout the international ...
 See also: Jewel, Diamond, Cut, Jewelry, Stone
  
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