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PlatinumJewelry.biz Diamond Cut Quality

Diagram of a Round-Cut Diamond

Graphic Elinksxample of Proportions

. Example (13582 bytes)
Note: These proportions apply only to round diamonds

Terminology

Ideal Cut	A diamond cut to optimal proportions, with optimal polish and symmetry, with the most weight loss to produce maximum luster, brilliance, dispersion, and scintillation. Diamonds cut to this standard are the most valuable, with only 5% of the round brilliant diamonds on the market cut to this standard.
Well- Cut	Diamonds that have very good optical beauty that fall just outside of the parameters of Ideal Cut diamond. These diamonds are priced less than Ideal cuts because they are not as rare.
Deep Cut	This diamond will appear smaller than it weighs because it's weight is retained in the depth. It is cut with a deep pavilion (bottom of the diamond) that does not reflect light back through the crown (top of the diamond). Light leaks out the pavilion producing a dark appearing diamond that lacks beauty. These diamonds are sometimes called nailheads due to their dark, face-up appearance.
Shallow Cut	Diamonds that are cut with shallow pavilions that do not reflect light back through their crown. The light leaks out from the pavilion, producing a washed-out or watery appearance that is not beautiful. Weight is retained in the diameter, making the diamonds appear larger than they weigh. These diamonds are sometimes called fisheyes, due to unsightly reflections in the crown area.
Bow-Tie	Effect dark area in the center of some fancy-shaped diamonds. A large bow-tie shape in the center of a fancy shaped diamond detracts from beauty and lowers the value.

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