The Diamond  Lite is set with white light for colour grading diamonds.  It also has long wave ultraviolet light to be used when checking for the presence of  Fluorescence in diamonds.  Fluorescence is the reaction of trace minerals within the diamond that cause the diamond to glow when exposed to ultraviolet light.

Fluorescence is not necessarily a bad thing but it does affect the way the diamond reacts to light. Fluorescence is therefore a consideration when matching stones for multi-stone items.

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