 MARQUISE diamond cut
If you are looking for a diamond cut that will stand out in the crowd and be easily noticed, consider the marquise cut diamond. The marquise cut diamond can be characterized as a boat shaped brilliant stone. The name is derived from the Marquise of Pompadour (1721 – 1764), for whom King Louis XV of France allegedly had a stone fashioned to resemble her perfectly shaped mouth.
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 Asshercut
A 57 facet diamond, the Asscher cut diamond was developed at a time when the round brilliant diamond was the common diamond shape. The Asscher shaped diamond is named for its creator, Joseph Asscher, owner of the Amsterdam based diamond company, the Asscher Diamond Company. The Asscher cut was developed in 1902, coming in the beginning of the Art-Deco movement that embraced and championed the straight lined geometric form. Its square, step cut shape was the forerunner of the later emerald cut shape of diamond.
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 Pear cut
Diamonds became popular as ornaments in jewelry in the 1400's and the different techniques and styles of diamond cuts such as the Pear Cut Diamond was highly popular during the Renaissance period. Pear shaped (AKA Pendeloque or Briolettes) have no table, culet or edge but are covered all round with long triangular shaped facets, and frequently pierced through at the top in order that they may be worn suspended.
The art of diamond cutting has been credited to a Flemish polisher called Lodewyk (Louis) van Berquem of Brugge,
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 The emerald cut was first developed to be used for cutting emeralds, not diamonds.
While the emerald gemstone is a relatively hard stone (7.5 - 8.0 on the Mohs scale), it is known for its numerous natural inclusions (naturally occurring internal flaws). The inclusions make the stone vulnerable to rupturing, making it quite difficult to cut.
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 Until recently, it was difficult to find Cushion Cut Diamonds for sale outside of specific sales and private auctions. Nowadays it seems cushion cuts are enjoying a small surge in popularity, especially in the American market and among stars and celebrities, and are again being offered by select diamond sellers.
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 The term "diamond cut" describes a style or the design guide used when shaping a diamond for polishing. Cut does not refer to shape (pear, oval), but the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly impacts a diamond brilliance, which means that if it the stone is cut not cut correctly, it will lose a lot of its luminosity.
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 One of most popular diamonds cuts, the princess cut is said to bring out more the “flame” and shine of the diamond. This cut is popular and praised among the professional diamond cutters, since they can make the best of the original properties of the crystal with minimum wastage, by cutting the original diamond in the shape of a pyramid with mirror (double pyramid).
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The value of diamonds is defined by four grades also known as the 4 C’s, which have to be harmonically combined in order to provide the best optical effect. They are the following:
Cut – Color– Clarity – Carat weight.
 The 1st C is the quality of the cut (cut, polish, symmetry):
(Excellent, Very Good, Good)
One very important element, if not the most important, since a beautiful stone of great weight cannot show its real beauty if badly cut and therefore will loose some of its value. On the other hand, a stone that is smaller yet cut perfectly can show an amazing shining and light penetration, and become instantly an irresistible objet of desire.
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Quality standards