Diamond Shapes and Sizes

People often picture their own ‘perfect stone’ in their head. They extend their hand as if they were wearing a precious ring, or look at a necklace in the mirror as if it contained their dream pendant.  Whereas, people are often willing to negotiate with the cut  or clarity  in order to acquire their dream diamonds, the shape is usually one of the non-negotiable basic requirements.


Click on any of the images below to read more about each of the most common diamond shapes.


Princess cut

Radiant shape Cushion cut

Oval shape

Heart shape Marquise shape Pear shape

Asscher cut

Emerald cut

Round shape



Deciding the Shape

First, the diamond rough is categorized into an octahedron or dodecahedron triangular shape. Then the cutter must study the rough and ensure he understands exactly what is going on inside the stone. Once he feels he is familiar with the stone, he can decide the shape he can best accomplish from the rough. Keeping the market value in mind, he can then begin the manufacturing stage towards producing the most valuable stone possible.


 diamond cutter marking the rough

Diamond cutter marking the rough


Diamonds can be cut into almost any shape desired. Only, because it isn’t profitable creating something that has no market value, unique diamond shapes are sometimes more difficult to locate. None the less, Leibish & Co. hold some of the most amazing unique diamond shapes in their inventory.


Learn more about some of the more unique diamond shapes available.


Common Diamond Shapes

The diamond shape refers to the geometrical form of a finished stone. The two main styles used to cut down a stone are 'Round Brilliant' and 'Fancy Shapes.' Today, many variations of the styles have been developed. However, the general idea still remains.

Read more about common diamond shapes.


Which Shapes Should I Choose?

The most common Fancy Shapes used for Fancy Colored Diamonds are Radiant and Cushion. With white diamonds the goal is to concentrate on the light performance and the brilliance or sparkle of the stone. With Fancy Color Diamonds, the goal is to concentrate much more on the color and intensity of the stone.


 Radiant and Cushion yellow diamonds

 Cushion and Radiant yellow diamonds



Radiant and Cushion shapes, for example, are known to absorb the light and therefore often grade very well on the GIA intensity scale. They are therefore considered a 'safe bet' when it comes to shaping the stones. In fact, as a result of the facet arrangements in these shapes, imperfections may be less noticeable as well. Other shapes such as Emerald and Princess are a rarer find since it is harder to keep the color in those stones. The color in an Emerald cut can actually seem to sometimes 'fall down' from the stone. However, if the cutter manages to create a Fancy Colored Emerald Cut diamond with a high level of color intensity, the value of the stone will increase considerably.


 Emerald shape pink diamonds

Emerald shape Pink diamonds

The facets formed in the fancy shaped diamonds are rarely symmetrical. In fact, many of the fancy shapes include elongated and asymmetrical facets. Each of the fancy shapes has their own unique characteristics as can be seen in the descriptions of each below.

Over time many other shapes have been developed and are seen in the market. These less common fancy shapes might be somewhat less popular but their shine is no less mesmerizing.



Contributor: Benji Margolese

Related Diamond Articles

article image
Diamond Color
article image
Defining Natural Fancy Colored Diamonds
article image
The Process of Crafting Fancy Colored Diamond Jewelry
article image
Fancy Colored Diamond Unique Diamond Shapes
Video Gallery
icon scroll icon scroll