Unlike diamond cut, which is a technical term regarding optimizing the rough diamond's beauty and optical attributes, the diamond 

shape is the actual geometrical shape of the diamond.
 

While most people thinking of diamonds conjure the picture of a diamond with a round top and a pointy end (known as a diamond pavilion), this shape, known as a round diamond shape, is actually just one of many possible ones.
 

Nowadays the most common shape is the round one, there are 8 more somewhat popular shapes (or fancy shapes as they are sometimes called).
This list isn't dictated by technological advances in the art of diamond cutting and shaping, but is purely dictated by latest fashion trends and jewelry taste-makers, combined with technical aspects that enhance the diamond's optical attributes.
In fact, there are many other shapes that were once popular, but today would be less common in stores and more in museums. To illustrate this point, there are some designers who are inventing new cuts or re-introducing old cuts, all in order to create a truly unique design. 




Diamond shapes




diamond - round cutRound shape

The round shape is the most common and loved shape today, and it's estimated that 75% of all diamonds sold are round.
This shape, researched and perfected for the past 100 year, was originally created in 1919 as a design created to maximize light reflection and refraction properties using no less then a 57 facets cut.
Not only does this shape maximize shine and optical attributes, it's also the most flexible for setting, mountable on anything from round diamond wedding band to diamond pendants and even body piercing jewelry.


diamond - princess cutPrincess Cut

The 2nd most popular shape, the princess cut, was created in Israel in 1980 in order to find a mid-way between the round shape's ideal brilliance,
with a slightly different looking, square shape. This cut, while almost as flexible with settings as the round shape, is found most commonly as diamond
princess wedding rings. The benefits of this shape is that it's more forgiving to natural diamond flaws compared to more traditional square diamond shapes. Lately this shape has become incredibly trendy and everyone wants to know more about what is a princess cut diamond. 



marquise diamondMarquise diamond

The Marquise diamond is a long and narrow design that creates a bigger looking diamond. As the story goes, King Louis XIV has ordered a diamond shaped
like the beautifully symmetrical mouth of the Marquise de Pompadour (Jeanne Antoinette Poisson).
Due to it's shape, diamond color and symmetry are very important, as these diamonds tend to look darker and must be symmetrical,
but also has the largest crown surface area, creating the previously mentioned larger size appearance.

 

 


pear diamond

Pear cut

The pear, or teardrop diamond, is a combination of both the round and marquise designs. It's arrow-shaped end creates a complementing look,
making the fingers seem slimmer and longer.




cushion cutCushion cut

This cut has been with us for the past 200 years, and was once the most popular diamond shape, it's a square cut with round corners, creating a cushion,
hence it's name. While it wasn't widely available in last decades, refinements in the cutting process as well as a trendy search for more “alternative” jewelry brought back this romantic, classy diamond, perfect for that
vintage engagement ring.
 
 

emerald cutEmerald cut

Dramatic and sophisticated, the emerald diamond is sporting a rectangular angle facet design, originally created to cut an entirely different gem
(hence the name “emerald”). It emphasizes high quality diamonds, making inclusions, lower clarity and lower color grades “stick out”.




heart diamond

 Heart diamond

 While not as popular as other cuts, the heart cut stands out as a pure symbol of love.

 It's more common to see a heart diamond necklace then a heart diamond ring, as the shape fits more naturally on other jewelry.




oval diamond

  Oval cut

  Created in 1960 by Mr. Lazare Kaplan, this modification of the round diamond, an oval cut diamond has the    same great optical attributes as the round
  diamond but it also accents and flatters long and slim fingers and necks.





Asscher diamond

  Asscher cut

  First created in 1902 by the famous Asscher brothers created this square “twist” on the emerald cut, creating a more octagonal look. Recent changes in the design,
  now over 100 years old, enhancing the cut's brilliance, made the Asscher cut become stylish again, including it's similarity to the popular princess cut diamond.



radiant cut diamond

  Radiant cut

  The radiant diamond is an improved design of the classic emerald diamond, this rectangular-square shape is a “best of both worlds” - a dramatic,
  impressive square cut that has facets (used in round shapes) instead of trim lines (used in square/rectangular shapes),
 enhancing the natural fire and brilliance of the stone.



 

It's important to remember that while most designs were created in order to make the stone's reflective and refractive qualities shine, it all comes down to personal taste – it's not “just” a diamond, it's your diamond.
 

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