What is table reflection?
A table reflection is literally the reflection of the table seen in the pavilion of the diamond in some lighting conditions. Diamond cutters have used this phenomenon since before scanners ever existed to judge pavilion depth.
One reason Brian is very strict with his range for ACA is because the table reflection gets larger as table size and/or pavilion angle increase. Click the graphic to see comparisons. The diamonds on the left are near the center of the ACA range. The diamonds on the right have tables and pavilion depth too great.
It’s also important to know that asymmetry ‘bloats’ the appearance of the table reflection. The diamond simulations in those graphics assume perfect optical symmetry. Commercially cut stones show much larger, uneven reflections.
Good to know, no?
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