Screening chart for Old European Cut diamonds

The visual appearance of “Excellent to Very Good cut quality” old European cut diamonds have the effect of returning sufficient light to somewhat equate them to Modern Cut Class 1-2 range stones. “Normal & Acceptable cut quality” old European cut diamonds are somewhat equivalent in light return and visual appearance to Cut Class 3 modern cut stones. “Poor Cut quality” old European cut diamonds are somewhat equivalent to modern Cut Class 4 diamonds.

by David S. Atlas, GG(GIA) Sr Mbr(NAJA) ASG(AGA)
datlas.com