2.3 ct RBC diamond comparison: Crafted by Infinity, WF ACA, and James Allen (GIA 3X)

[Karl_K]

Fluorescence doesn't need clouds to make a flawless diamond cloudy.


Yes, but there are a lot of videos, and the CBI looks the same in most if not all of them.


You are talking about extreme cloudiness.
Fluorescence can be much more subtle, like making a diamond slightly glow when it should be dark while partially imprisoning the fire like behind a slightly foggy window.
It's more obvious to see this happen when you can compare to a diamond that is not fluorescent.
Jonathan's video is one of the best to show this symptoms:

Its slightly over blue and some of the virtual facets are being masked, but I like it better than the other one and dont see any deficit in fire.
That does not mean every very strong has any issues.

 

[Gemly]

Wow, this was an amazing thread. Thanks!!