Friday 20 July 2018

Extract from GIA Textbook


This set of questions helps graders arrive at a conclusion for Clarity grading:
Under the microscope,
  • ·        Are there any blemishes or inclusions? If not, the grade is Flawless.
  •       Are there only a few blemishes? If so, the grade is IF.
  • ·        Are the inclusions very difficult to see (in other words, are they minute)? If so, the grade is in the VVS range.
  • ·        Are the inclusions in a range from difficult to somewhat easy to see (in other words, are they minor)? If so, the grade is in the VS range.
  • ·        Are the inclusions easy to very easy to see (noticeable)? If so, the grade is in the SI range.
  • ·        Are the inclusions all very easy to see (obvious)? If so, the grade is in the I range.


Courtesy: GIA. Resource: Amanda. #eClarity

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