The Round fantastic Cut is arguably the most popular and most recognizable solitaire cut of all the cuts available with over three quarters of all diamonds used in jewellery cut to this shape, this is because it achieves the many brilliance and fire. Thus is optically the most efficient. It was industrialized by Marcel Tolkowsky as late as 1919. This cut is unquestionably the most popular among buyers at the present time with the Princess Cut being a distant second.
The Round fantastic Cut was industrialized from the Old European Cut which was the most industrialized cut of the 19th century. The first fantastic cuts were introduced in the middle of 17th century and were known as Mazarins or double Cuts. They typically had 17 facets which by today's standards would mean they would be pretty dull as a fantastic round cut solitaire has 58 facets. The next improvement was made by a Venetian polisher, Vincent Peruzzi, who increased the facet count from 17 to 33 it became known as the Peruzzi fantastic or the Triple Cut, these also would look considerably dull as the bruting technique had not as yet been developed. This is the technique whereby two diamonds are set on to axels and set to spin in opposite directions thus grind together to give them rounded edges. The Peruzzi dramatically improved the fire and brilliance of the solitaire compared to the Mazarin Brilliants. By the 19th century the Old European Cut had became the most popular cut, it had a shallower pavilion, more rounded shape and distinct arrangement of facets. This is the fore runner of the round brilliant.
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The Russian mathematical genius Marcel Tolkowsky, a member of a large and mighty solitaire family, subsequently calculated the cuts significant to create the ideal solitaire shape. As part of his PhD thesis in mathematics, Tolkowsky determined variables such as the index of refraction and covalent bond angles to report what has come to be known as the Round fantastic Cut. Thus maximising the fire and brilliance of the stone. Since this there have been minor developments as Tolkowsky's calculations were not perfect. Tolkowsky had not followed the path of the light rays that were reflected more than twice inside the diamond; this meant that the results were incomplete. Tolkowsky's guidelines, while revolutionary in their day, are not a definitive explication to the question of looking the exquisite proportions of a round fantastic cut diamond, which has to led to other attempts to do so. In the past few decades computers have been used to try to find the optimum standards for the round brilliant.
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Customer Reviews
*** Product Information and Prices Stored: Jun 01, 2012 18:52:10
These proportions for the perfectionist in terms of the Round fantastic Cut are a depth division of between 59.3% and 62% and a table division of 55% to 58% this would help to maximise the brilliance and scintillation as the gem appears to dance and sparkle in the light. Diamonds of such potential are hard to come by as there is such a huge interrogate for these.
The above diagram shows how the depth and table division work on the brilliance. As you can see if the cut is whether too shallow or too deep light is able to leave and not reflected back to the viewer.
The most popular of all cuts the Round fantastic in its ideal proportions is designed to give maximum scintillation, attractiveness and fire. Rounds make up the vast majority of diamonds found in engagement rings and are popular as stud earrings and in pendants. The fantastic cut follows more naturally the rough solitaire crystal shape, and thus is most popular for cutting due to the attractiveness it returns. The Round fantastic Cut also has the appearance of being larger than it unquestionably is which means that a higher carat weight is not significant when purchasing the gem.
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