Ideal/Premium Cut Round Diamonds

Ideal Cut*

Depth % Table % Avg. Crown Angle Avg. Pavillion
Depth %		 Girdle Thickness
57.9 - 62.9 52.5 - 58.0 33.7 - 35.8 42.2 - 43.8 No extremely thin
No extremely thick

Polish - Good, Very Good, Excellent
Symmetry - Good, Very Good, Excellent

Premium Cut*

Depth % Table % Avg. Crown Angle Avg. Pavillion Depth % Girdle Thickness
58.0 - 63.5 53 - 62 30 - 35.5 40.0 - 44.0 No extremely thick

Polish - Good, Very Good, Excellent
Symmetry - Good, Very Good, Excellent

In some instances, A.G.S. Ideal Cuts ("0" cut grades), G.I.A. Ideals with "excellent" polish, "excellent" symmetry, and stones that exhibit the Hearts & Arrows phenomenon can command higher premiums than Ideal Cuts that fall into the specifications we outlined above. Confused? Give us a call and ask one of our diamond experts.

*Please remember that the attractiveness of a diamond is a subjective quality. Beautiful diamonds often fall outside of these guidelines. In fact, a G.I.A. study appearing in the fall 1998 issue of Gems & Gemology confirms this opinion.

Most of our diamonds are well-cut and attractive, but some do not fall into either the premium or ideal category. These stones may be 5-30% less expensive. Please contact our friendly sales consultants and let us help you find the right stone.