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Diamond proportions and facets, for the round brilliant cut. The original round brilliant-cut was developed by Marcel Tolkowsky in 1919. The ideal proportions are 100% diameter, 53% table, 43.1% pavilion and 16.2% crown. The girdle and culet (if any—not part of Tolkowsky's original design) are cut from the ideal brilliant.
A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous.
The Princess cut is the only true square diamond and one of the newest diamond shapes. With striking pointed corners, Princess cut diamonds have an undeniable presence that's perfect for ...
In gemology, a culet is a flat face on the bottom of a gemstone.. Diamond proportions and facets, for the round brilliant cut. During the 14th century, after the adoption of the table cut, a further facet was added to the bottom of the cut parallel to the surface of the table.
The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance. [2]
Tom Cruise is choosing to accept a major honor from the U.S. Navy.. The "Top Gun" star, 62, on Tuesday received the Navy's Distinguished Public Service Award, the highest honor that Navy Secretary ...
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