Fluorescence

[dpe49]

As a followup to my other post. Does fluorescence bother anyone when considering the appearance(quality) of the diamond. Thanks!

 

[valeria101]

I have no idea how many can even see it, unless it gets very strong indeed.

You may want to read this:
GIA, Gems and Gemology

and more from the same study

The stone in the picture has some exceptionally strong fluorescence, a "very strong blue" for sure.

Hope this helps.