Abstract: All diamonds are created
equal, but some are more equal. What makes them First Among Equals would be
those cut diamonds which are certified by GIA (Gemological Institute of
America) with a GIA...
In 1919 a young Russian
mathematician, Marcel Tolkowsky, wrote a Master thesis, Diamond Design, on the
proportions for Round Brilliant Cut diamond.
He systematically analyzed the optics of a
diamond and estimated the best proportions for cutting round