The Science of Pleochroism in Gemstones

Certain gemstones possess a fascinating feature in addition to their brilliance—pleochroism. This effect causes a gemstone to reveal two or three colors, depending on the angle from which it is viewed. It is not magic, but the effect of physics in action.

Pleochroism is the result of how light interacts with the crystal structure of some gems. When light enters the gem, it is separated into various wavelengths, with each being absorbed or passed through differently based on direction. This color shift, based on direction, enhances the gem's beauty, value, and individuality.