When choosing diamonds, probably the most main reasons to take into account may be the quality of cut in the gemstone. This, even more than the color and also the clarity of the diamond, determines how much sparkle eminating from the gem. A well cut diamond could have well proportioned and well angled facets which precisely reflect and refract the light whilst preventing any from prematurely escaping with the back in the gemstone.
Within a finished diamond, the widest the main diamond is called the girdle. The section here is referred to as the pavilion as well as the section over the girdle is known as the crown. An engagement ring is held in the setting by its girdle, so the crown is that part of the gemstone which is easily visible from the ring. The the surface of the crown is the table.
The table is the largest and quite a few important facet of the entire cutting process because it’s the primary feeder point for light passing to the gemstone and it’s also the facet which launches essentially the most fire and sparkle. Within a Round Brilliant cut diamond, the table is ideally 56% in the width from the girdle however, this proportion can increase dramatically to a massive 90% within the mirror cut.
In table cut diamonds, the table facet is formed into a geometric square or square like shape, say for example a rectangle. This is unusual as the table part of most cuts is round, oblong, octagon as etc. Even square shaped Princess cut gemstones have octagonal table facets as well as the square like Cushion cut, a rounded square table.
However, perhaps the geometric table facets of the true Square cut and Baguette cut, themselves using the Oblong cut are certainly not enough to make them true Table Diamonds. It is because these are based on a step cut, the place that the facets across the pavilion are reduce steps parallel on the edges just like the sides of an Pyramid. The sides of true Table Diamonds are cut into gently rounding facets not steps. This can help maximise the flicker from the gemstone.
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