The visible light some gemstones emit when they are exposed to ultra violet light. In natural diamonds, blue is the most common colour but other colours may vary.

Flourescence refers to the strength, intensity of the diamonds reaction to the long wave UV, an essential component of daylight.

For more in depth information on fluorescence visit our education section here.

Diamond Fluorescence Grades

Diamond Fluorescence

*By signing up you confirm that you have read the Privacy Policy and agree that your email and gender will be collected and used by Austen Blake for the purposes of sending news, promotions and updates via email. You can withdraw your consent at any time by unsubscribing or contacting us via [email protected]