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The following are charts on most diamond cut proportions, please be warned these charts are under constant updating and revision as new information becomes available.

Round Cut

Emerald,Radiant and Princess

Pear, Heart, Oval and Marquise

Ideal Cuts:

Tolkowsky Ideal - 1919

Ideal Brilliant - 1926

Practical Fine Cut - 1939 (Eppler)

Parker Brilliant - 1951

Scandinavian Standard Brilliant - 1969

Cut Comparison Chart

A detailed look at:

The Brilliant Cut

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