Brilliant Cut

The most popular is round brilliant cut, its ideal proportion is designed to give maximum scintillation, brilliance and fire. For almost 100 years, diamond cutters have been using advanced theories of light behavior and precise mathematical calculations to optimize the fire and brilliance in a round diamond. It comprises of 58 facets, round brilliant cut follows more naturally the rough diamond crystal shape, and is the most readily available in every possible quality and size.

Princess Cut

The princess is one of the most popular fancy diamond shapes. Its beautiful brilliance and unique cut makes it a favorite for engagement rings. The proportions are considered better the more square the stone is cut, with exact 90 degree internal angle on each corner; princess cut diamonds can also be slightly rectangle in shape.

Optimum Shape is: Length to Width ratio 1:1
Acceptable are: Length to Width ratio 1-1.4:1

Oval Cut

An oval diamond has beautiful brilliance that's similar to a round diamond if well proportioned which gives great scintillation and fire. Oval diamond is also very popular as its length can accentuate long, slender fingers. A well cut oval diamond can be almost as bright as a well cut Brilliant or round shaped diamond as the angles for cutting are closer to that of a brilliant cut diamond.

Optimum Shape is: Length to Width ratio 1.5:1
Acceptable are: Length to Width ratio 1.5-1.75:1

Heart Cut

The heart is the universal symbol of love. The unique look of the heart-shaped diamond makes it a distinctive choice for a variety of diamond jewelry. The heart shape is one of those special cuts that follow more human and emotional values. The technical benefit is that a heart shape diamond has a roundish pavilion and if well cut and proportioned can drive the sparkle and scintillation back out of the diamond.

Optimum Shape is: Length to Width ratio 0.9-1.2:1, or which is most pleasing to the eye

Marquise Cut

Nothing speaks of femininity, elegance and timeless sophistication like the Marquise-cut diamond. The shape of a marquise diamond can maximize carat weight, giving a much larger-looking diamond. This brilliant-cut diamond looks beautiful set with round or pear-shaped side stones, and the length of the marquise makes fingers appear long and slender. The length-to-width ratio will determine the diamond's outline, or what it will look like when viewed from the top.

Optimum Shape is: Length to Width ratio 2:1
Acceptable are: Length to Width ratio 1.75-2.25:1

Emerald Cut

The Emerald cut uses a series of flat rectangular facets stepping down off the table to give it a unique brilliance, quite different to that of a round or curved shaped cut. Due to its larger, open table, this shape highlights the clarity of a diamond. If you choose an emerald-cut with a lower clarity grade, such as SI, be sure to review the clarity plot on the diamond certificate.

Optimum Shape is: Length to Width ratio 1.35-1.65:1
Acceptable are: Length to Width ratio 1.25-1.75:1

Trilliant Cut

One of the more unusual cuts the trilliant displays a very sharp brilliance or fire if the diamond is cut to the correct depth allowing good scintillation. Excellent for shoulder diamonds accompany a square or rectangular shaped diamond.

Optimum Shape: Length to Width ratio 1:1

Acceptable are: Length to Width ratio 1:1

Pear Cut

This pear-shaped brilliant-cut diamond is also called a teardrop for its single point and rounded end. The unique look of the pear shape helps making it to be a popular choice for a variety of diamond jewelry. The pear shape uses the base of a brilliant or round cut, if well proportioned, it gives a depth of scintillation to the point of the stone. This cut of stone elongates the bearer’s fingers and enables them looks like slimmer, making it delicate and light. As far as luminosity, it is comparable to the most faceted of the lot, with unparalleled sparkle and falls into the brilliant cut category.

Optimum Shape: Length to Width ratio 1.5:1

Acceptable are: Length to Width ratio 1.5-1.7:1

Radiant Cut

Trimmed corners are the signature of this diamond, and they help make the radiant-cut a popular and elegant choice for jewelry. The Radiant can either be cut as a square or rectangle. An essentially square-to-rectangular shaped diamond, this cut boasts facets best appreciated from bird’s eye view. The Radiant has a strong look with a unique type sparkle, differing from Emerald and Princess Cuts. Radiant-cut diamonds can vary in their degree of rectangularity.

Optimum Shape; For Square Length to Width ratio 1:1

Acceptable are; For Rectangle Length to Width ratio 1.5:1

Curved Trilliant Cut

A softer look than the straight edge trilliant , a more unusual cut for a diamond , a bold fattish looking shape, deep and strong appearance , three soft points, three lines of curvature , nice if well proportioned.

Optimum Shape: Length to Width ratio 1:1

Acceptable are: Length to Width ratio 1.1 to 1

Baguette Cut

Coming from the French bread stick. The Baguette may be cut long or more emerald shaped in proportions. As a main stone, the proportions should be more like a rectangle shape. The Baguette is for those people who want a long stone, usually used are small baguettes to accompany different shaped diamonds.

Optimum Shape: Length to Width ratio 1.5:1

Acceptable are: Length to Width ratio 1.5.-2.5:1

Asscher Cut

This beautifully unique shape is nearly identical to the emerald-cut, except that it is square. Also, this shape has a pavilion that is cut with rectangular facets in the same style as the emerald-cut. Due to sharp and plentiful surface area, one should choose with refinement a higher clarity grade of diamond as this cut displays brilliance with the same vigor that it would display any color, especially around the edges. Joseph Asscher was an eminent diamond cutter who cut the 3,106 carat Cullinan diamond. Asscher worked in Amsterdam. In 1902, his company, the Asscher Diamond Co., developed and patented the Asscher cut, a squarish step cut with an almost octagonal outline.

Optimum Shape: Length to Width ratio 1:1

Acceptable are: Length to Width ratio 1-1.4:1