Diamond Shape Guides

When considering diamonds, many will promptly think about the classic round shape diamond. It’s no doubt that the round brilliant cut is the most popular shape however in case you’re searching for something other than what’s expected, there are a lot of different shapes available. A diamond’s shape refers to its physical structure and every diamond shape is altogether different, possessing unique characteristics. Despite the fact that shape isn’t a part of the 4 C’s of Diamonds, this component will affect the appearance of your diamond. Since every diamond shape is cut to different specifications, they reflect light differently, giving each shape an exceptional fire and brilliance.


Knowing the fundamental data about diamond shapes will help you to choose the ideal diamond for you or a friend or family member. Each shape offers a distinct set of recognizable differences that determine the cost, quality, and overall appeal.

Our Diamond Shapes Guide will enable you to expand your financial plan with your ideal taste and style. In view of these notes, you can choose a diamond that will be cherished and admired for years to come. Select a style below to learn more about each diamond shape.


The Most Common Diamond Shapes



The round brilliant cut diamond is by a wide margin the most popular and most researched diamond shape available today. For just about 100 years, diamond cutters have been using advanced explanations of light behavior and exact mathematical calculations to improve (as much as possible) the fire and brilliance in a round diamond. In addition to being the most popular and researched shape, round-cut diamonds will ordinarily give you greater flexibility in terms of cut, color, and clarity grades while still getting the fire and brilliance you want. As the leading diamond shape in terms of (quality of being liked a lot or done a lot), the Round Brilliant Cut represents over two-thirds of the diamonds sold.

In 1919, Marcel Tolkowsky published, “Diamond Design: A Study of the Reflection and Refraction of Light in Diamond,” which clarified the ideal angles for a diamond to produce the highest level of fire and brilliance. His work created a surge in the Round Brilliant Cut’s popularity, which stays reliable today.

The Round Brilliant’s refined shape allows for maximum reflection of light, adding to its incredible brilliance. Round Brilliant Cuts have 58 facets (including the culet).

Length to width ratio

For the most stylish diamonds, pick a length to width ratio of 1.0-1.03.

Buying guide

The cut quality of a Round Brilliant essentially impacts its beauty and is maybe the most important element when choosing a diamond. In addition to reviewing ratings or GIA reports, look at the diamond firsthand or ask for the help of an expert. Some costly diamonds with higher ratings may have more noticeable inclusions than certain more affordable diamonds.

Strong points

The Round Brilliant Cut is popular for some reason, one being that it gives outstanding brilliance and a classic, ageless look. Round Brilliant Cut diamonds are stunning choices for necklaces, engagement rings, and other fine jewelry.



After the Round Brilliant Cut, this fancy cut shape is second in diamond popularity. It’s made from the altered pyramid of the rough diamond stone. Traditionally square, the Princess Cut accomplishes greater brilliance and fire than other comparatively shaped diamonds. Rectangular Princess Cuts are also available.

This is a square or rectangular cut with various sparkling facets. It is a moderately new cut and regularly discovers its way into solitaire engagement rings. Complimenting to a hand with long fingers, it is frequently decorated with triangular stones at its sides. Because of its design, this cut requires more weight to be coordinated toward the diamond’s depth in order to maximize brilliance. Depth percentages of 70% to 78% are common.

Length to width  ratio

For a princess diamond shape that is square, search for length-to-width ratio somewhere in the range of 1 and 1.05. If you prefer more of a rectangular shape, search for a length-to-width ratio greater than 1.10. For a princess precious stone shapes that are pleasing to the eye.

Buying guide

To prevent damage to the corners, a Princess Cut Diamond ought to be set with prongs on each of the four corners. Inclusions will generally be covered up by the prongs, so it’s worthy to pick a Princess Cut with inclusions toward the edges.

Strong points

The Princess Cut takes into account a square outline while as yet offering about a similar brilliance as the Round Brilliant Cut. Because of the bigger yield maintained from cutting for a Princess, the cost per carat is generally much lower than the Round Cut.



Utilizing the technique initially designed to cut emeralds, this diamond shape comes properly by its name. With its large table surface, the Emerald Cut Diamond offers plentiful reflections through its long, straight lines or ‘steps.’ Emerald Cuts are able to be seen in both square and rectangle shapes.



Length to width ratio

A traditional Emerald Cut ratio ranges from 1.30 to 1.60, with the most popular decision being 1.50.

Buying guide

In view of its magnificently large table, inclusions may be more noticeable in an Emerald Cut. Therefore, we advise looking for a VS1 or VS2 for the emerald shape. Normally an SI1 has a good chance of not being visible. But, that is rarely the case in emerald cuts.

Strong points

A popular decision for those wanting a bigger stone without a high price point and Emerald Cut diamond normally seems bigger than other shaped diamond in similar carat weight. So, if you’re thinking of this unique cut for your engagement ring, your emerald diamond will stand out and impress onlookers.



The Cushion Cut Diamond gets its name from the combination of a square shape with rounded edges, making it resemble a cushion or pillow. Because of its exact bending and scattering of light, the Cushion Cut beams with fire.

Having a character-rich antique look, the cushion cut diamond is a favorite center stone choice for the individuals who prefer vintage style engagement rings and jewelry. The cushion-cut gets its vintage appeal from various historical cushion diamonds. Antique cushions were cut using step facets until Marcel Tolkowsky introduced the new way of trying things for cutting cushions with brilliant facets; the equal faceting way of doing things as a modern round cut diamond. This way of doing things included more brilliance and fire. So a cushion cut is also referred to as a “cushion brilliant”.

These days, an even more up to date method is used when cutting cushion diamonds that add an extra row of facets to the pavilion of the diamond. Cushions cut along this way are referred to as a “modified cushion brilliant” on the diamond grading report. Including a modern flair, they can sometimes look like crushed ice with an enhanced sparkle. Some diamond cutters even utilize a hybrid of the two methods (larger facets), which diminishes the “crushed ice” appearance yet holds a portion of the modified sparkles.

Length to width ratio

Cushions are regularly square, yet can be rectangular as well. For the square-shaped cushion, keep the ratio between 1.0 -1.09. Slight rectangle ratio usually ranges from 1.15-1.25.

Buying guide

As a general rule, attempt to stick to Cushions with a depth under 70% and a table under 70%. This will ensure brilliance and fire is kept up all through the depth of the diamond.

Strong points

With many cut choices, picking a Cushion Diamond offers creativity and personalization. Cushions likewise have the luxurious appeal of a classic style along with modern flair and fire.



Considered a revolutionary concept when it was first cut, the Asscher diamond was made and named after the owners of the Royal Asscher Diamond Company. Although not exceptionally popular, the Asscher cut has its advantages and Asscher diamond engagement rings are ideal for the individuals who love vintage style. Its structural cutting style makes it ideal for art deco ring designs, which have grabbed the attention of many avent-grade diamond authorities.

Numerous diamond specialists compare the facets of a properly cut Asscher to an apparently endless hallway lined with reflective mirrors, emanating a lot of sparkles. Although new cutting techniques are continually emerging to optimize the sparkle of the Asscher cut diamond, similar basic characteristics have endured for over a century. Since the cutting style of an Asscher makes defects more visible, it is recommended to choose a diamond clarity grade of SI1 or higher.

Length to width ratio

A length to width ratio for a square Asscher should fall between 1.0-1.05 to keep up a square look for the naked eye.

Buying guide

When it comes to Color, Asscher Cuts don’t mask the color of the diamonds rough material as well as different cuts like the Round Brilliant and Princess Cut. Asscher is cut for their clarity and luster—so nothing is covered up. Thus, we suggest buying a minimum of an H Color in the Asscher Cut.

Strong points

The Asscher Cut’s deep pavilion and precision make an enamoring appeal. While like the Emerald Cut, the Asscher will in general offer more sparkle, because of its high crown and 58 facets.



Perfect for the individual who needs an elegant and sophisticated diamond, the pear cut diamond combines the best features of the round and marquise cuts. Looking like a sparkling drop of water with one end rounded and the other pointed, this shape is fittingly referred to as a “teardrop” or “drop cut”. The elongated shape makes a slenderizing effect, making the pear cut particularly complimenting on diamond rings and earrings. Pear cut diamonds are one of the most customizable shapes because of the variation of stone widths available. Narrower pear cut diamonds look especially elegant on dangle earrings, while one with a wider width makes a progressively strong appearing on an engagement ring.

In a perfect pear cut diamond, the point lines up with the apex of the rounded arc, and the two sides of the arc are symmetrical. Similar to the elongated shapes of the marquise and oval cuts, pear cut diamonds that have larger length-to-width ratios are inclined to a darkening in the center of the stone that is visible in a certain light. This “bow-tie” effect can be seen with the naked eye, so it is essential to get a visible investigation on your diamond before finalizing your purchase.

Length to width ratio

The classic length to width ratio ranges from 1.45-1.75. Evaluating a variety of ratios will give you a thought of individual preference. You may wish, for example, for a wider or more narrow shape.

Buying guide

While choosing your Pear Shaped Diamond, watch for the seriousness of the bow tie—the dark area running across the center of the diamond. All Pear Shaped Diamonds, and other fancy elongated shapes, more often have a bow tie. Survey the diamond or have a specialist help you in deciding whether the bow tie is too prominent within the piece.

Strong points

A Pear Shaped Diamond makes for a charming engagement ring. Since well-cut Pear shapes are harder to find, it’s a perfect option in contrast to traditional cuts like the round diamond. The Pear Shaped also hides inclusions well.



The timeless, elegant shape of the oval cut diamond adds a pinch of class to any piece of jewelry. Joining the work of art, high brilliance of the round cut with a more unique shape, the oval cut creates an advanced, modern twist on the traditional round shape. The elongated shape creates the illusion of longer, progressively thin fingers, making it amazingly complimenting on the hand. Created by Lazar Kaplan in the late 1950s, the oval diamond is a phenomenal decision for the sentimental buyer on a budget. The oval is symbolic of a relationship based on trust and stability, and its lengthened shape makes this diamond look bigger than different shapes of a similar carat weight.

Length to width ratio

While always dependent on individual preference, the Oval Diamond is regularly engaging in a ratio of 1.30-1.50.

Buying guide

Similar to the pear shape diamond with its elongated proportions, the oval cut diamond may display a “bow-tie” effect across the center of the stone. This darkened area can be found in certain angles of light and is not a feature desired by most buyers. Moreover, oval cuts are inclined to showing color more easily, so we recommend choosing a stone with an H color or higher. As usual, it is advisable to get a visual inspection on any loose oval diamond prior to purchasing.

Strong points

This fancy length diamond is durable since it conveys no pointed edges. Ovals additionally have a lower price point than Brilliant Round Cuts while still maintaining the curved shape.



Nothing says “love” like a heart, and that is the thing that makes the heart shape particularly popular in an anniversary gift or engagement ring. Cut similar to the pear shape, the heart highlights two rounded edges divided by a single cleft, rather than a single rounded arc. The heart cut is regularly highlighted in a simple ring setting to emphasize its unique qualities.


Length to width ratio

An ideal length to width ratio is 1.00. If the ratio is above 1.10, the Heart will seem progressively extended (stretched, tall and thin).

Buying guide

Due to its form, the heart shape is best viewed in a higher carat, such as  1 or 2. As it is difficult to see the details of the cleft and point in smaller stones. If using a smaller carat weight,  we recommend a bezel or 3-prong setting to highlight the heart’s unique shape.

Strong points

In addition to being an indication of romance, the Heart Shaped Diamond requires a superior cut, dragging out and possibly increasing its value after some time.



With an intricate 70 facet cut, radiant diamonds are effervescent and exude an enormous amount of sparkle. Originally created by Henry Grossbard as an option in contrast to the emerald cut, radiant cut diamonds are square or rectangular and are magnificent reflectors of light and have been popular since their creation in the 1970s. The individuals who appreciate the fire of round diamonds and the modernity of Asscher or emerald diamonds will observe the radiant cut to be the ideal combination of both. Radiant cuts, because of their numerous facets, tend to strengthen the color of the stone.

Length to width ratio

An ideal range for a square cut is 1.0-1.05. Rectangular shapes may have a ratio of up to 2.0.

Buying guide

The Color differences in Radiant Cuts are harder to see than in other diamonds. An H or I  Color grade is generally adequate in Radiants, allowing you to utilize your budget on other aspects of the cut quality.

Strong points

Radiants are formed with numerous facets and angles, influencing them to show up practically like cracked ice. Because of this, flaws and inclusions are effectively hidden. The angled corners of Radiant Cuts allow for more stability—making it a wise choice for those with an active lifestyle.



There is no preventing the timeless elegance of a marquise cut diamond. Flaunting a brilliant 58 facets, the shape shines with substantial fire and sparkle. The marquise cut’s complementing effect creates the illusion of long, thin fingers. Because of their vintage style, marquise diamonds are popular in vintage legacy jewelry and look stunning in accessory pieces, such as pendants, rings or necklaces.


Length to width ratio

The Marquise’s unique structure offers a length to width ratio of 1.85 to 2.1.

Buying guide

Because of its long shape, symmetry is important when choosing a Marquise Diamond. Ensure the two pointed ends adjust almost perfectly with one another. At the point when a Marquise Diamond is set, two prongs will hold the pointed ends to prevent chipping. It’s worth noting that inclusions near the tips of the Marquise will probably be hidden by these prongs.

Strong points

The Marquise’s extended figure gives the appearance of a bigger stone when compared with different shapes in a similar carat. Making the fingers of the wearer look thinner and longer, the Marquise sparkles brilliantly and is usually noticed for its unique shape.


baguette cut diamond

Displaying 24 parallel facets, the Baguette Diamond has long, parallel lines and remarkable clarity. Rectangular in shape with step cutting, Baguettes make for dynamic ring centerpieces and graceful side stones.



Length to width ratio

In view of individual preference and utilization of the Baguette Diamond, length to width ratio range from 1.50-2.40.

Buying guide

Normally available in smaller sizes, the Baguette is an ideal accent to another stone or as a piece of a wedding ring. Several Baguettes can be placed next to each other for a large diamond array. As a result of the Baguette’s clarity, ensure no noticeable inclusions are contained inside the diamond.

Strong points

The long bar shape of the Baguette offers extraordinary size even at a low carat. Its clarity and engaging symmetry make it a classic and timeless diamond.


Trillion cut diamond

Trillion Diamonds, also called as trilliant diamonds are incredibly enchanting and unique. They are different than round, square or rectangular shapes, the Trillion quite often makes an impression.

With their rich brightness and deep fire, Trillions diverge from famous shapes yet are similarly as exquisite.

Length to width ratio

The perfect length to width ratio for a Trillion is 1.0-1.10.

Buying guide

Trillions make for noticeable centerpieces of an engagement ring or as complimentary side stones. When setting a Trillion Diamond, ensure the edges are protected with prongs. If a Trillion has inclusions near its points, they will probably be hidden by jewelry borders or prongs.

Strong points

The identity of the Trillion is maybe its strongest asset. The sharp, unique features make a dashing look, maximized by the Trillion’s huge width. Therefore, Trillions tend to look larger than other diamonds of the same carat weight.

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