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Marcel Tolkowsky (25 December 1899 – 10 February 1991), [1] an engineer by education, was a Belgian member of a Jewish family of diamond cutters from Poland. He is generally acknowledged as the father of the modern round brilliant diamond cut . [ 2 ]
The round brilliant cut is preferred when the crystal is an octahedron, ... The original round brilliant-cut was developed by Marcel Tolkowsky in 1919. The ideal ...
In 1919, Marcel Tolkowsky analyzed this cut: his calculations took both brilliance (the amount of white light reflected) and fire into consideration, creating a delicate balance between the two. [11] Tolkowsky's calculations would serve as the basis for all future brilliant cut modifications and standards.
Gabriel S. Tolkowsky (15 September 1939 – 28 May 2023) was a Belgian-Israeli diamond cutter, best known for cutting the Centenary Diamond. [1] He was the great nephew of Marcel Tolkowsky, father of the modern round brilliant diamond cut. [2] He is the sixth generation in his family to become well-known in the diamond cutting trade. [3] [4]
This first early version of what would become the modern Brilliant Cut is said to have been devised by an Italian named Peruzzi, sometime in the late 17th century. [1] [2] Later on, the first angles for an "ideal" cut diamond were calculated by Marcel Tolkowsky in 1919. Slight modifications have been made since then, but angles for "ideal" cut ...
A simplified round brilliant cut process includes the following stages: Planning – Modern day planning of a diamond is done using computer software. Marking – Outlining the best possible shape and cut of the diamond. Sawing the rough stone – depending on the shape of rough diamond as not all diamonds are sawn. Table; Bruting the girdle.
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The techniques for cutting diamonds have been developed over hundreds of years, with perhaps the greatest achievements made in 1919 by mathematician and gem enthusiast Marcel Tolkowsky. He developed the round brilliant cut by calculating the ideal shape to return and scatter light when a diamond is viewed from above. The modern round brilliant ...
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