In looking at diamonds, so many are graded by GIA and not AGS. With that said, using the AGS ideal table charts, we can see which diamonds would qualify for AGS Ideal cut standards. Doing so opens up a lot more choices for diamond shopping; even many of the best cut stones seem to get graded by GIA for whatever reason. Probably because consumers won't appreciate the more stringent AGS rating, even if the same stone were rated AGS 000.
Obviously GIA uses different cut guidelines, but assuming the symmetry and polish on a GIA stone are EX, is there any reason that a GIA with AGS Ideal cut number wouldn't be an AGS Ideal cut rated stone if graded by AGS?
Asking a different way, are there other factors besides cut angles and symmetry/consistency of those angles that AGS uses when evaluating cut?
Obviously GIA uses different cut guidelines, but assuming the symmetry and polish on a GIA stone are EX, is there any reason that a GIA with AGS Ideal cut number wouldn't be an AGS Ideal cut rated stone if graded by AGS?
Asking a different way, are there other factors besides cut angles and symmetry/consistency of those angles that AGS uses when evaluating cut?