Diamonds have a high index of refration (n = 2.4195) and coefficient of dispersion (COD = 0.044). When light reaches a boundary, it can refract or reflect, in proportion to the Fresnel Reflection Coefficient. The angle of the refracted light is given by Snell’s Law: n1sin(θ1) = n2sin(θ2)
Links
- Click here to see my rock and gemstone collection.
- Ray Traced Diamond – POV-Ray code by PM 2Ring, based on Marcel Tolkowsky’s “ideal” diamond
- Prism Refraction – Java applet
- 3D Dispersion – C++ renderings by Werner Benger
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Paul Nylander 
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