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Gemological Institute of America (GIA)

  • The Gemological Institute of America (GIA) was formed in 1931 and is an independent, non-profit, educational and research institution. The Institute’s scientists, diamond graders, and educators are regarded as the world’s foremost authority in gemology.
  • GIA is the creator of the 4Cs of diamond value.
  • The GIA does not buy or sell diamonds.
  • A Diamond Grading Report issued by GIA, is recognized throughout the jewelry industry as the most respected, accurate and trustworthy grading report.
  • Having a diamond certified by an individual who graduated from a course (e.g. the Graduate Diamonds diploma course) offered by GIA is NOT the same as having it certified by the GIA.

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Chapter: Diamonds :: 29 April 2007

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