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What is an XXX stone?

neuman101

Rough_Rock
Joined
Sep 9, 2011
Messages
18
I put in a pricescope request for diamond info. A representative from ERD wrote back and asked me if I would consider XXX stones with a GIA certificate. What are XXX stones? Thanks for the info.
 
Excellent cut, polish and symmetry.
 
I think they mean a GIA triple excellent, like an AGS triple 0. GIA uses 'excellent' while AGS uses a numerical system with 0 being the best.
 
Triple excellent grade in cut, polish and symmetry. Polish and symm, VG and better is hard to distinguish by the laymen without equipment. GIA cut grade is a little iffy, I would add another criteria and that is Ex cut with a Holloway Cut adviser score below 2.

Cut adviser.
https://www.pricescope.com/tools/hca
 
Unfortunately not as salacious as it sounds.
 
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