Flourescence

flourescence
The luminous property that some gemstones like diamonds have, whereby they emit light or radiation when exposed to ultraviolet light ...

Flourescence
The effect of ultraviolet (UV) light on atoms that are found within diamonds. Atoms within the crystalline structure of the diamond emit a glowing and bluish light under a UV-rich light.

What is Flourescence?
Fluorescence is an effect that is seen in some gem-quality diamonds when they are exposed to long-wave ultraviolet light (such as the lighting frequently seen in dance clubs).

Flourescence
Fluorescence is property in which light (or other radiation) is emitted from an object. Many stones (including some diamonds) flouresce when exposed to ultraviolet light.
Freshwater Pearl ...

Ultraviolet Flourescence
In Franklin, New Jersey material: SW=red; LW=inert; In magnesioaxinite from Tanzania: SW=dull red; LW=orange-red.
Spectra ...

Often mis-spelt as flourescence by those who should know better. The emission of visible light displayed by some diamonds and other gems when viewed in ultra-violet or other light.

Strong fluorescence should be avoided, but faint fluorescence usually does not affect the appearance of a diamond. In fact, faint or moderate blue flourescence is preferred by some customers because it can make a less expensive yellowish color ...

addressed by jewelry stores, as it greatly detracts both from the appearance and the value of a diamond. If the diamond has a grading report, it will say whether the fluorescence is none, faint, medium, or strong. You don´t want strong flourescence.

See also: Stone, Color, Diamond, Table, Flour