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Diamond Shapes

Diamond Shapes

Diamond Shapes

The term diamond shape signifies the form, manner and style of shaping a rough diamond stone. On this site we have selected the top ten most famous and best-selling shapes of diamonds in the world. Detailed descriptions of every diamond are probably more useful in comparison to others. We have tried to highlight the most important facts of each shape to create an overall rating according to your subjective feelings and taste, so you can choose the most suitable diamond shape for you. 

Many people get confused between the terms cut and shape because they are considered to be synonyms. There is a large difference between the cut and the shape of a diamondCut means a technique in which a brillianteer polishes the diamond stone in order to improve the light reflection and shine together, or simply the brilliance of diamonds. It is an integral part of the essential Cs that define specifications of a diamond. Over time, jewelers have come to the conclusion that the cut with numerous tiny facets under specific angles and perfectly polished surfaces will increase the brightness perception. Today's diamonds are shaped in such a way.

Shape describes a diamond's form, symmetry and proportions that require artisan craftsmanship and a well-planned idea how to divide a rough diamond. Putting word cut after the diamond "type name" is creating an incorrect expression (e.g. Princess cut or Trilliant cut) since cut refers to the quality parameters such as proportions, symmetry, and polish, although people use the word cut more common than shape. Natural characteristics also have an influence when choosing a diamond shape before cutting because the amount of inclusions or internal flaws may suggest the need to choose a different one. Defects within the structure of the diamond crystal will surely impact the final gemstone's look. Impurities degrade the diamond clarity scale and reduce the value of shape but can be very easily detected by the naked eye. The picture above shows the characteristically magnificent glitter.


A couple centuries ago, diamonds weren't popular for decorative purposes since glitter and dispersion were disastrous. Today's Round diamond forerunners had only 33 pieces: twice less than the average contemporary diamond. That has changed when Louis XIV, the noted Sun King of France, ordered the specially shaped diamond for his lady to resemble her beautiful smile. During the history of diamond shaping, the attributes are improving as time passes, but one crucial event changed the perception of the phrase "diamond shape" and "brillianteering" by causing a revolution in modern jewelry design. Marcel Tolkowsky in his book Diamond Design specified the exact dimensions and angles for ideal cut diamonds. His Round Brilliant diamond shape has 58 facets, which provides a gorgeous reflection. Eye-catching scintillation briefly acquired the diamond market, which was in full rise, making brilliants the top brand among all diamond shapes afterward. Today, it accounts for about 75 percent of all diamonds sold. 

Other fancy cuts, from which we could single out Princess and Cushion as the well-known, or step cuts like Emerald and Asscher, together with less popular diamonds satisfy the remaining part. In addition to these two divisions, other existing diamond shapes are usually hybrids of the basic models or unique, patent protected shapes. Radiant, for example, has both brilliance and its step faceted presenting the most desirable characteristics of shapes. Thus, Pear is the combination of tapered Marquise and rounded Oval diamonds. Heart has a special shape, the next level of combined diamond cutting is performed when the upper curved line was divided into two parts, hence the name. The actual price depends on law of supply and demand so the sophisticated Brilliant keeps prices high due to high demand while the Heart does the same with the low supply. 

The proportions of a diamond are determined by the length-to-width ratio and vary from shape to shape. Square diamonds have an exact 1:1 ratio, while rectangular ones are characterized by larger numbers. This factor is also a matter of your taste and situation in a jewelry store. A diamond's depth percentage is the ample area for diamonds. There are standards that define the Ideal or Premium cut, according to the depth percentages they are generally ranging from 62% to 68%. When speaking about facets, brilliant shapes have 58 parts that divide the diamond into 3 basic parts: the CrownGirdle and Pavilion. The crown consists of tablestar and bezel while the girdle facets divided into upper and lower. The pavilion's surfaces are shaped like a kite and spread to the bottom point of a diamond called culet. The broadest length of the girdle is considered to be the diamond's diameter


How will a particular shape appear on a piece of jewelry and how to use it in the best possible way is explained individually much better than following, but here's an abbreviated version. The common mounting style for diamonds is the one with secure prongs to hold a precious gem visible to the observer's eye. Diamond shape such as Round should be mounted on a jour to expose the diamond to light. Stunning Princess should have protected corners to prevent chipping, while the Emerald is a very good choice because the price is much lower in comparison with other diamonds when comparing carat weight, of course. Marvelous Marquise will fit on long fingers and lovely Oval will lengthen the look of the hand. Radiant represents glamour and shine while the contrary, oldie but goodie Asscher fits the vintage style ring. Loose Pear with a teardrop appearance is the best diamond for earrings or pendants. Cushion stands for irresistible romance and the Heart is a symbol for eternal, sentimental love. You'll certainly have to choose the diamond shape that best suits your personality. 

Round Brilliant 


Round Brilliant is the first shape with ideal proportions, which has greatly popularized diamonds as jewelry. Initially, Round was developing slow through the centuries and then the modern version changed everything. The mathematician who created the Brilliant applied his knowledge of geometry mathematics to design a perfect diamond shape with an elusive sparkle and achieve a perfect light reflection. Diamond deservedly achieves an incomparable success in sales these days. To format the shape, computes and laser technology is used. Great demand and low processing efficiency are the biggest culprits for high prices. More than half the material is wasted during the cut of a diamond. Although, it's mostly used for engagement rings and wedding bands, Round will show its beauty on earrings too. The glitter possesses incredible ability to amaze the viewer, even as a loose diamond. Round shapes are excellent when mounted as the center stonewith gems on each side. 



The rectangular Emerald diamonds may be mistakenly confused with emerald gemstones. The same cutting technique was practiced on the diamond and the Emerald shape was born. Width is twice its length and depth percentage varies around 60%. Someone will say Emeralds aren't as trendy as they used to be, but shape still keeps a sufficient amount on market. Polished facets reveal the shape's quality, simultaneously making it prone to scratches. The cost will dramatically decrease if the impurities in a diamond are visible with the eye. The lack of gleam is balanced by the affordable price. Baguette, four-prong settings or accents may be the most adventurous option for an Emerald diamond. The bulky shape is easily noticeable if placed on the front of the trinket. 



Elliptical Oval diamonds started to manufacture half a century ago. The shape is reminiscent of an egg, hence the Latin name "Oval". Just like all brilliant shapes, Oval has 58 facets that provide an amazing visual experience to the observer. Some shaped diamonds such like this are patented so the well-defined outline cannot be copied. A pre-selected shape gets a final look after the artisan polishes the diamond to a high-gloss finish. It's important for Oval because of an enhanced shine that differs it from old-fashioned diamonds. The preferred ratio is 1.5 while the clarity grade should as high as possible. This diamond has an essential advantage in in comparison to other shapes: the rounded points can't be easily chipped since its sharpening isn't traditional for Ovals. The shape is suitable for women with shorter fingers because diamond extends the visual aspect. Side-stone set or three diamond rings are the worthiest choice for such an adorable diamond. 



Marquise diamond is the first shape specially designed to be used as a present. Diamond was brought to the Marquise de Pompadour in order to point out her irresistible lips. The shape is stretched, usually ranges 2:1 aspect ratio, and has sharp peaks. Marquise is quite popular but never reached the fame that it had once. The spread surfaces nicely show actual size of the diamond. Despite this fact, there is a problem that occurs in all elongated diamond shapes and it is called a bow-tie effect. The dark area near the center of a diamond distorts the overall picture if it's easily seen. Otherwise, phenomenon can be spotted only at certain angles of observation. Diamonds such as Marquise or the other prolonged shapes will match the long fingers. Looks elegant if decorated with accent gems as side diamonds on an engagement or wedding ring. 



Pear is sometimes called "Teardrop" because its shape reminds one of a droplet. One peak is sharpened while the other side is curved so it is suitable and used for a pendant or earrings to a great extent. Often jewelers cut a tapered end very thin so the diamond breaks easily. Almost all of these diamonds are put into the category of modified brilliant cut. Workmanship requirements are regular for the diamond's shape due to the cross-section. Length-to-width ratio is from 1.45 to 1.75, an elongated outline is typical for the Pear. When placed on the ring finger, diamond should be towards the finger thus the rounded part faces upward. Negative bow-tie and high-shoulders effects are common for the Pear diamonds. 


Radiant shape diamonds are the most famous hybrid cut also considered as the first fancy diamond. The features of brilliants, in addition to advantageous attributes of step-cut diamonds, unite the finest properties of the greatest shapes. Diamond provides good gloss, while on the other hand protects from chipping. Radiant is relatively young shape but in the short history, it quickly became celebrated. Shapes like Radiant are popular due the possibility to paint it with a colored background. These diamonds assume the pink, azure, red, or any other color easily. The example are the canary yellows, adaptations of yellow diamonds. A Certificated Radiant diamond is frequently seen on ringsstuds, and pendants or bracelets



The Heart shapes have romantic symbolism. It is usually given to a special person on Valentine's Day or the sentimental anniversary gift. Shape has emerged from the Pear diamonds, a curved part of the diamond is split in half. The arches make it appear like a heart. Precious stone must be perfectly accurate therefore a pristine symbol of love could get the hottest shape. Cutters not infrequently decide to take a rough stone and make Heart diamonds if inclusions are on the place where an arc could be formed. Rare ratio for this diamond drops below 1, even down to 0.85. Brilliant sheen is visible even in such complex, irregular shapes. Authorized dealers sell Heart diamond shapes in red and colorless versions, or sell it as pink engagement rings. It will match the versatile diamond jewelry. 



Princess is the second top selling shape of the diamond, patented long ago but free to manufacture now. A great advantage is the exploitation of rough diamonds so the carat weight isn't lost. The optical properties are good and resistance to surface damage will give you a guarantee for durability. Cutting a Princess diamond was originally utilized for flat shapes. Ratio ranges from 1.0 or just a little more since the diamond is traditionally squared. The Princess cut diamonds look like an inverted pyramid so the top is almost always fixed on a ring. Like all fancy shapes, pick the greatest clarity as possible because you won't have troubles with slightly colored edges. Three stone and solitaire rings are the best opinion for Princess shape. 



Asscher cut diamonds are square in shape and represent Art Deco design style. The shape was developed by the Asscher brothers from Amsterdam, the famous home for diamond cutting. Modifications allowed diamonds to return the light much better than other step cuts which took it to the top for some time period. A new version, Royal Asscher has additional facets and are therefore rare. The better depth is taken at the cost of carat weight. Faintly visible color will appear at the deeply trimmed edges if you take a poor grade, as well as for many well-known diamond shapes. Baguette, solitaire rings and even pendants fit with an Asscher but engagement settings or a pair of earrings look extremely attractive just like loose diamonds of similar shape. 



Cushion or "pillow" cut was fashionable during the Victorian era, two centuries ago, and then returned again in a vintage style. An antique imprint hasn't improved its position on the market, so Cushion shape still isn't too popular now. Shape draws from the roots of the old Old Mine cut, the representative of the age when diamonds were less valuable. Cushion is also called "Candlelight diamond" because watching it near a candle offered a considerable glow. 58 facet pattern, in a rectangular or square shape depending on its ratio. Like all diamonds, prongs hold it on the stand, mostly of the ring. Cushion is seldom seen but leaves a strong impression of the royal diamond. 


Triangle-shaped diamonds are categorized under two main groups: slightly curved Trilliant diamonds and straight-sided Trielle (Trillion) diamonds. The shape is characterized by a symmetrical triangle, offering the same brilliance as other diamonds with more facets. Trilliant diamonds have 31 facets or 50 for Trielle. Diamonds are made by two major companies, and they are often seen as accents stones, as well as single pieces. 

Other patented or fancy diamond shapes are: Baguette, Barocut, Briolette, Corona, Half Moon, Kite, Leo, Millennium, Old European, Old Mine Cut, Trapezoid, Quadrillion. 

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