What is White Light score in a B''scope analysis - is it how the diamond looks in a diffuse light condition? The higher the White Light score in the B''scope analysis the better the diamond looks in a office light condition.
Just a rookie here, but I believe the B-scope measure diamond light return using direct (not diffuse) light conditions. The white light is the measure of brilliance rather than fire. Those flashes of white that hit the eye. Hope this helps.
The BrillianceScope scores "white light," "color light," and "scintillation" according to the following scheme:
The images are made up of thousands of "pixels". The analysis program then examines each pixel and determines if it is a White pixel, Color pixel or other. The software then counts the number of White pixels in all five images and divides it by the total number of pixels in the diamond. Thus a percentage number is arrived at i.e. the White Light Performance (WLP).
We measured thousands of diamonds to find the best WLP and the worst WLP. A simple linear scale was developed with the worst WLP on the left and the best WLP on the right. The software then plots the WLP number of the measured diamond on the scale. This allows anyone at a glance to determine how this diamond compares to others in the world.
The exact procedure and steps apply to the Color Light Performance. Scintillation is slightly different in that the number of "points of Light" that turn on and off as the lighting changes is plotted on the graphs. (Source, now defunct: www.gemex.com/htmdocs/consumer/old/technical_faqs.html)
In short, each measure ("white light," "color light," and "scintillation") is determined by first classifying pixels as white, color, or other, then counting them, and finally assigning a score based on this count.