American Ideal/Tolkowsky	European Ideal
Total Depth	58.7 - 62.3%	60.0 - 61.1%
Table Diameter	53.0 - 58.0%	57.5%
Girdle Thickness	medium to slightly thick	very thin to medium
Culet Size	none to medium	none to medium
Crown Angles	34.3º to 34.7º	34.5º
Pavilion Depth	43.1%	43.1%
Finish	very good to excellent	good to excellent
Crown Height	16.2%	16.2%