Girdle Question ... AGS vs. GIA

[New Guy :)]

Hello all,

I''m looking at two GIA reports and trying to get a rough idea of what the AGS would say about the stones based on their dimensions.

GIA says diamond #1 has a Thin-Medium (3.0%) girdle.
GIA says diamond #2 has a Medium-Slightly Thick (3.5%) girdle.

What would the AGS say about these? Would they be called the same thing (TN-M, M-STK)? Or do those percentages mean different things to the AGS (e.g., perhaps a 3.0% is called STK by the AGS, or something like that)?

Thanks for your help!

 

[Todd Gray]

The two labs actually measure the girdle thickness from different vantage points, so you''ll need a Sarin | OGI | Helium | file to be able to make an accurate comparison. But here is the AGS girdle thickness chart.