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  • Established in 1931, GIA is considered the world’s foremost authority in gemmology. Present in 13 countries, with 10 campuses, 4 research centres and 9 laboratories analysing some of the world’s most notable gems.
  • GIA is a nonprofit institute dedicated to continuous education and research in the field of gems and jewellery.
  • GIA’s mission is to ensure public trust in gems and jewellery by upholding the highest standards of integrity, academics, science and professionalism.
  • GIA created global standards to accurately determine diamond quality (4Cs – Color, Clarity, Cut and Carat Weight), coloured stones and pearls (GIA’s 7 Pearl Value FactorsTM – Size, Shape, Color, Lustre, Surface Quality, Nacre Quality and Matching).


The GIA Diamond Grading Report includes an assessment of the 4Cs – Color, Clarity, Cut, and Carat Weight – along with a plotted diagram of its clarity characteristics and a graphic representation of the diamond’s proportions.


  • 0.15 carats & above
  • Loose
  • D-to-Z natural
  • Round brilliant cut
  • Untreated (Not synthetics, simulants, mounted diamonds, diamonds with fracture filling or coating or HPHT processed)


  • Key grading details - Carat Weight, Color, Clarity and Cut grades
  • Additional grading information including Polish, Symmetry and Fluorescence
  • Laser inscription of the report number

Fees for Services*
Disclaimer: GIA Laboratory in India accepts stones between 0.15 to 3.99 carats*

Online results and a printable PDF are provided at GIA.edu through Report Check and My Laboratory.
For more information on Diamond Grading Report requirements, please contact toll-free 1800 41 999 14 or write to labindia@gia.edu