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The Diamond Industry Dilemma
Tolkowsky’s model has been accepted for over eighty years and is still being used, mainly, because no one believed it could be improved. Since then Man has achieved such technological wonders such as traveling to the moon, and yet the light performance of the round diamond has remained the same. Additionally, most manufacturing methods are conveniently set to cut this model. A V2 motor engine with perfect efficiency will still never match the power of a good V8 engine. Although the old 58-facet model is good, it is built upon outdated assumptions. Therefore, it is still just a V2 engine that needs to be overhauled. No matter how perfectly and precisely a diamond is cut, if its faceting arrangement inherently
has limitations that would limit its internal light flow, white light return, color light return, and scintillation, then it can never match the performance of another cut model that does not have those limitations.
Having a diamond perfectly cut is not an assurance of ultimate brilliance for that shape; it only means optimal performance for that particular faceting arrangement model. Therefore, it is the light management configuration (the reception of external light and the redirection of all incidents, reflected and refracted rays) known as faceting arrangement, combined with proper proportions and perfect precision cutting that leads to the most optimal performance for that shape. However, the diamond industry is slow to change. Most would rather keep cutting the same old 58-facet model and keep trying to improve this model's light performance by losing more weight from the rough material with little or no observable gain.
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