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Certification & Grading Diamonds

Diamond Grading Report (Dgr) GIC,Sri lanka

Diamond Grading Report (DGR)

The GIC Diamond Grading Report includes an assessment of a diamond’s 4Cs;

  • Colour
  • Clarity
  • Cut and
  • Carat weight for standard round brilliant cut diamonds falling in the D-to-Z colour range.

The GIC laboratory issues diamond grading reports for loose, natural diamonds in the D-to-Z colour range. Diamond Grading Reports are not issued for laboratory-grown diamonds, diamond simulants, mounted diamonds or those that have undergone unstable treatments, such as fracture filling or coating and for diamonds that have been laser drilled or HPHT processed.