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What is GIA's position on the SI3 clarity grade?


GIA has never used this grade and has no plans to use it in the future. 

Bill Boyajian, President of GIA, wrote in a letter to Jewelers’ Circular Keystone (JCK) Magazine in May of 2002: 

“We have studied the SI3 suggestion at various times over the years, and yet again recently when proposed and adopted in principle by the World Federation of Diamond Bourses.  However, GIA still concludes there is no reason to change our long-standing and universally accepted diamond grading system.”

If the owner of a diamond has a report from a lab other than the GIA Gem Laboratory in which the SI3 grade was assigned, and would like to know how GIA would grade the stone, the diamond will have to be sent to our laboratory for a diamond grading report.  Please contact our laboratory offices to obtain information about fees and how to submit the diamond: GIA Gem Laboratory, Carlsbad, California: (800) 421-7250, ext. 7590, e-mail: gtravis@gia.edu; GIA Gem Laboratory, New York City: (212) 221-5858; e-mail: cindy.ng@gia.edu.

 

 

 

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