Diamond Cut Study
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Study of Interdependence:
Fancy-color Diamond Appearance, Cut, and Lighting Conditions

1 Introduction
2 The DiamCalc modeling technology
3 Colored diamond models under various illuminating conditions
4 Colored diamond models based on another type of absorbtion spectum
5 Appendix
Fancy-Color Diamonds:
Better Color Appearance by Optimizing Cut
Computer modeling of gemstones for improvement of their color appearance
Visible adsorption spectra and DiamCalc-files of colored gem materials
3DBook
DiamCalc Internal Cuts gallery
External Cuts gallery (Dll)
Diamond cuts gallery
 
Colored diamond models
under various illuminating conditions

Even though these results were obtained with CZ material, diamond appearance can be modeled with this software (see Figures 7 and 8) by using the appropriate refractive index and the absorbtion spectrum.

It is advisable to use several controlled lighting conditions when designing and optimizing new cuts because of diamond's variability in appearance under different lighting conditions. Diamond proportions that have an inconsistent appearance under different types of lighting can be avoided. A good diamond cut should have an attractive appearance under all lighting conditions. One can use computer models of several common illuminations to predict stones appearance before stones are cut.

Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope light on Magna Colorscope light off Ring 6 cm Ring 17 cm Office Jewelry store
Magna Colorscope
light on
Magna Colorscope
light off
Ring 6 cm Ring 17 cm Office Jewelry store
 
Figure 7. Colored diamond models under various illuminating conditions. Stones size 7 mm.

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