What does Diamond Shapes mean?

When buying a diamond engagement ring, there is a multitude of things to consider. After deciding on the budget, the next item on the checklist is most probably the shape of the diamond. Diamond Shapes are usually confused with one of the Diamond 4Cs, the Diamond Cut. The shape of a diamond refers to the physical silhouette of a diamond. The Diamond Cut, on the other hand, refers to how well a diamond’s facet interacts with light. You can read more about the Diamond Cut in our previous article.

There are two concepts you need to know before choosing the ideal shape from the wide array of diamond shapes. First, each shape has their own unique properties and prices. Second, the compatibility between the diamond shapes, ring settings, and size of hands.

Let us dive deep into the characteristics of the top 10 shapes for diamond engagement rings.

Round Brilliant

Round Brilliant Diamond Shape Although there is a decrease in popularity, the Round Brilliant Diamond remains the most popular shape and accounts for about 75% of all diamonds sold. It is also the most researched shape, using advanced math and theories of light behaviour to enhance the fire and brilliance of the diamond.

Princess Cut

Princess Cut Diamond Shape Created in 1980, the Princess Cut Diamond is the most popular fancy (non-round) shape for engagement rings. This square shape is dynamic and is suitable for contrasting designs, in either modern or vintage look. If you have decided on a princess cut diamond for your engagement ring, ensure the following. First, ensure that all sides are parallel. Next, choose a prong setting that will protect all the four corners of the diamond.


Cushion Diamond Shape

A Cushion Diamond, also known as Pillow Cut, combines a square or rectangle with rounded corners. This classic shape was very popular in the early 1900s. The Cushion Diamond has made a comeback recently due to refinements and research, which increased the diamond’s brilliance.

Similar to choosing a princess cut diamond, ensure that all sides are parallel. Also, ensure that the cushion diamond has even corners. As it is easier to spot inclusions in this shape, go for a better diamond clarity grade. You can read more about diamond clarity in our previous article.


Oval Diamond Shape A variant of the Round Brilliant Diamonds, an Oval Diamond exhibits similar fire and brilliance. Following the history of oval diamond brings us to 1300s with the infamous Koh-i-Noor, one of the largest oval brilliant diamond in the world. Oval diamond’s popularity lies in its ability to make your finger looks longer and slimmer.


Emerald Diamond Shape The type of brilliance for an Emerald Diamond differs greatly from the round brilliant diamond. The step-cut facets give it a mirror-like effect, with symmetrical and structured sparkle. With a large flat facet at the top of the emerald diamond, also known as the table, the inside of the diamond is more visible. As a result, inclusions and colour tints are more prominent. Thus, diamond clarity and colour are important qualities to consider. You can read more about Diamond Colour in our previous article.


Asscher Diamond Shape The Asscher Diamond is a precursor of the Emerald Diamond, first produced in 1902 by the Asscher Brothers of Holland. It is square and has step-cut facets similar to an Emerald Diamond. Inclusions are easily seen from the top and colours may be visible from its corners for this shape. When selecting an Asscher diamond, ensure that all sides are parallel.


Marquise Diamond Shape Named after Marquise de Pompadour, the Marquise Diamond is commissioned by King Louis XV of France to mimic after the shape of his mistress’ lips. The marquise diamond has one of the largest surface areas, which makes it looks larger in size when compared with other shapes. When choosing a marquise diamond, pay attention to the symmetry attribute. A slight difference can make it appear uneven and unbalance. As the sharp ends of the diamond are vulnerable to chipping, choose a prong setting that will protect the corners.


Pear-Shaped Diamond Also referred to as teardrop-cut diamond, the Pear-Shaped Diamond combines a round brilliant diamond with a marquise diamond. This uniquely shaped diamond is created by Lodewyk van Bercken of Belgium in the early 1400s. Similar to the marquise diamond, symmetry is crucial to this shape. Remember to choose a prong setting that will protect the tip of the diamond. Wearing it with the tip pointing towards the fingernails will make the finger appear slimmer.


Radiant Diamond Shape One of the youngest diamond shapes, the Radiant Diamond was invented by Henry Grossbard of Austria in 1977. It was created with the aim of combining the best properties of a round brilliant and emerald cut. The signature of the radiant diamond is its trimmed corners, which radiates its brilliance. As with all square and rectangular shaped diamonds, ensure that all sides are parallel.


Heart-Shaped Diamond The first Heart-Shaped diamond appeared in the 1400s. Used to be a symbol of royalty, it slowly evolved into a symbol of friendship. And now, it represents love and romance. Heart-shaped diamonds are the most expensive diamond cut. Symmetry is the most important aspect when choosing a heart-shaped diamond. Both halves should be identical. For the heart shape to be recognizable, it should be above 0.50ct. Any diamond that weighs lighter than 0.50ct is not advisable.

The Ideal Diamond Shape for Your Engagement Ring

Each diamond shape has their own unique properties. Choose a shape that compliments the hands of your loved one. Elongate fingers through extended shapes like the pear, marquise, or oval set on a thin band. Narrow shapes like the emerald are more suitable for thin fingers while round brilliant and heart-shapes looks great with larger hands.

However, these are all tips and should not be considered as absolute rules. Email or book an appointment with us to find out more about different diamond shapes and the type of settings that are can protect and accentuate the diamond.

And, if you are interested in creating your customized Engagement Ring, check out our OnDemand 3D-CAD Customization Service. We have very limited slots left for booking. Contact us to grab the last few slots!