flourecence

[guccienv]

I have a question on how AGS rates their flourecence. What is the progression from good to bad? I''ve seen ratings of none, negligible, and inert. Are these three the same?

Thank you.

 

[Giangi]

AGS = negligible, medium, strong, very strong
GIA = none, faint, medium, strong, very strong
EGLUSA = none, faint, medium, strong, very strong
EGL Israel = none, very slight, slight, moderate, distinct, very distinct
HRD = nil, slight, medium, strong
IGI = none, very slight, slight, distinct, very strong

 

[DiamondExpert]

The term "Inert" is the old AGS designation which has been replaced by Negligible, the latter of which now would include both no visible fluor. and a very faint to faint fluor.

Many times the color of the fluorescence is not mentioned on certs...in >90% of cases it will be blue, but can be of other colors like green, yellow, etc.