The unique and rare ability to color change occurs only in rare sapphire that forms with two light transmission windows rather than one. In order to truly appreciate color change sapphire, specimens should be observed under different lighting conditions, including early morning daylight, late afternoon daylight, fluorescent light and incandescent light.

Fine top grade color change sapphire can exhibit quite a noticeable and dramatic color change, but most material will only partially shift from blue to bluish-purple.

Typically, most color change sapphire shifts from blue under natural daylight to a violet-purple under incandescent light. Although blue is the most common color, color change sapphire can occur in a range of other colors, including greenish, yellowish, pinkish and violet-purple, depending on the coloring agents within the specific stone. About Color Change Sapphire - History and IntroductionĬolor change sapphire is an exceptionally rare, fancy variety of corundum which exhibits the unique ability to change color when viewed under different light sources.

Color of sapphire