Diamond Shapes

Every diamond shape displays a different internal pattern created by its own unique faceting style. This is one reason why some diamond shapes are more brilliant than others.

Diamond cutting styles are separated into three main categories:

  • Brilliant Cuts: This faceting style allows for better light reflection and is considered to have the greatest brilliance of all cutting styles.
  • Step Cuts: This faceting style is composed of rows of facets that resemble the steps of a staircase. Examples of this cutting style are the classic emerald cut and baguttes.
  • Mixed Cuts: Original Radiant cut diamond.

Choosing your favorite shape of diamond can be a challenging task because each one is beautiful in its own unique way. There are pros and cons to each shape concerning durability, maximum light reflection, and the way that the shape flatters the wearer. However, as long as you choose a stone that is ideally cut for that shape, you can be sure that your diamond is one of superior beauty.

Classic Diamond Shapes

Antique Diamond Shapes

Side Stones & Other Shapes

Classic Diamond Shapes

Round Brilliant

This shape is the standard for all other shapes and it is the most popular of all diamonds sold.

It has 58 facet cuts or planes that are divided between its crown, girdle and pavilion. The key for brilliance is this shape's proportion. Only about 7 to 8 percent of the diamonds cut in the world are cut with ideal proportions to maximize fire and brilliance.




Square or rectangular, both combine the elegance of the emerald cut with the brilliance of the round brilliant. This cut demands 70 facets or planes to maximizes the effect of its color refraction.




This is a relatively new cut and a variation of the Original Radiant Cut developed by Mr. Henry Grossbard. The main difference is its sharp corners (its weakest point) and the alignment of the facets.

Because of the basic design, this cut requires more weight to be directed toward its depth. Depth percentage of 70% to 80% are common.



This elongated round gives an illusion of length to the hand.



An elongated diamond with pointed ends. Tradition says that this diamond design was inspired by the fetching smile of the Marquise de Pompadour and commissioned by King Louis XIV of France, who wanted a diamond to match that smile.



A beautiful sparking teardrop. This is a hybrid cut. It combines the best of the oval and the marquis.

The pear is chosen often for pendants and earrings.


Emerald Cut

A classic look. This is a rectangular cut with cut corners. It is also known as the step cut for its concentric broad flat planes resembling stairs steps.


This classic geometric cut was first developed in Amsterdam. The exact design has some variations depending on the particular characteristics of the natural diamond. Sometimes, the edges are straight or it can have a rounded triangular shape with 25 facets on the crown.


Heart Shape

The unique look of the heart-shaped diamond helps make it a distinctive choice for a variety of diamond jewelry. When choosing a color grade, consider that color may be slightly visible in its corners.

Antique Diamond Shapes

When considering diamonds in antique jewelry, one must be careful not to judge antique diamonds by modern standards. Antique diamonds have a soft romantic glow that many people find very appealing.

Antique diamonds typically have smaller tables, higher crowns, deeper pavilions and thicker girdles than their modern counterparts.

Diamonds were cut by hand until the early 1900's. This was a laborious, time-consuming process. Unfortunately, many antique diamonds have been re-cut with modern cutting techniques. This has caused demand for these old cut diamonds to soar in recent years, along with the prices that people are willing to pay for them.

Antique diamonds were cut to maximize carat weight, not "fire". That's why the proportions of old diamonds are quite different from their modern counterparts.

Below you will find descriptions of some of the most popular antique diamond shapes, however, there are many other variations and combination of antique cuts.


This is an antique style of diamond cut that mixes an old mine cut and a modern oval cut diamond. It can be found in both forms, ranging from rectangular or more square.

Old Mine Cut

The old mine cut diamond is the earliest form of the modern brilliant cut. Also called the "cushion cut", as it has a cushioned shaped girdle.

This cut of diamond is characterized by a high crown, small table, deep pavilion and large cutlet. Other names for this cut are: old miner, peruzzi cut, and triple cut brilliant.

Old European Cut

The old European diamond has a very small table, a heavy crown, and great overall depth.

This diamond cut was the fore-runner of the modern brilliant cut. Like the modern round brilliant, the old European diamond has a circular girdle.

Asscher Cut

In 1902, Asscher Diamond Co. Patented a rectilinear diamond cut. You can say this is a square emerald cut for this is also a step cut with deeply cut corners. The original Asscher cut had a small table, high crown, broad step facets, deep pavilion and square cutlet. This cut is considered the forerunner of the current emerald cut diamond.

Single Cut Diamond

The single cut diamond has an octagonal girdle, a table, eight bezel (or crown) facets, and 8 pavilion facets. It may or may not have a cutlet.

Single cut diamonds are common to accent jewelry designs. They demand a less price per carat, but they are less brilliant than the regular 58 faceted round.


Briolette cut diamonds are found in antique and estate jewelry from the Victorian, Edwardian and Art Deco eras.

The Briolette Cut diamond is a drop-shaped stone with triangular or diamond shaped facets all the way around. There is no table, crown or pavilion.

The more facets the drop has, the more brilliant it is. There is a lot of subtle, surface reflection in many of the older Briolette cut diamonds.

Side Stone Shapes

Half Moon

The half moon diamond is used mainly for side stone and have the profile of half a round or half an oval diamond. They look great with rectangular shaped center stones.


This shaped was discovered by accident. A damaged radiant cut was in need of repair and this nice shape emerged as a result. This shaped is used mainly for side stone and have the profile of half a round or half an oval diamond. They look great with rectangular shaped center stones.

Tapered Baguette

This is a step cut diamond used frequently as a side stone. Baguettes have un beveled corners, usually only two rows of facets and may be rectangular or tapered. Baguettes does not have the sparkle of a brilliant cut, but has a classic beauty.