Round Brilliant – The Round Brilliant is the most popular
diamond shape today. Not to be confused with Round, the Round Brilliant is the
modern and heavily researched version of the Round, it has been refined for the
maximum amount of shine and brilliance. The Round Brilliant gives you the most
variety and flexibility in terms of giving you the best balance of cut, color,
and clarity with the size and brilliance you want in your diamond.
Princess Cut – This is the most popular shape after the
Round Brilliant, and is extremely popular for engagement rings. The Princess
Cut is a square in shape, has pointed corners, and has refractive properties
i.e. provides the same brilliance as a Round Cut. Princess cuts can have
differing length-to-width ratios, and therefore differ in how rectangular or
square they are. A square Princess Cut will have a length-to-width ratio
ranging from 1.00 to 1.05, a rectangular Princess Cut will be in excess of a
ratio of 1.10.
Emerald Cut – This is a rectangular shaped stone with old
world elegance associated with it. An Emerald Cut Diamond’s pavilion differs
from all other cuts as it is cut with rectangular facets to create a unique
optical appearance. The large open table provides a mirror like appearance and
highlights the clarity of the diamonds. As in the Princess Cut diamond, the
length-to-width ration will determine how square or rectangular the diamond is.
For a classic Emerald Cut look, the length-to-width ratio should be within the
range of 1.30 to 1.40.
Asscher Cut – An Asscher Cut is essentially a square
version of the Emerald Cut. It is more brilliant, has a smaller table, and a
deeper pavilion. As with an Emerald Cut, the corners of the diamond are clipped
to give an eight-sided diamond. The Asscher cut also has a number of parallel
steps cut into the pavilion giving a fascinating optical effect that has been
known to be described as a “hall of mirrors”. And again the large table of the
Asscher Cut diamond highlights the clarity of the stone. Asscher Cut diamonds
that have a length-to-width ratio ranging from 1.00 to 1.05 will appear square.
Marquise - A marquise diamond maximizes the carat weight
of a diamond resulting in a larger diamond from the rough. Its shape is a
variation of a Round Diamond that has been elongated with pointed edges (to put
it rather untechnically). The length of a Marquise Diamond accentuates the
length of long slender fingers. The more traditional Marquise Diamond has a
length-to-width ratio with a range from 1.75 to 2.25.
Oval – An Oval shaped diamond is very similar to a Round
except it is elliptical in shape. It has beautiful brilliance similar to a
Round Brilliant Diamond. This shape is a popular choice as its length can
enhance the beauty of long, slender fingers. Shape appeal is very important
with this diamond. In a more traditional Oval Shape diamond, the
length-to-width ration ranges from 1.33 to 1.66.
Radiant – This is a modified shape, a square or a
rectangular diamond with clipped edges line an Emerald Cut, a combination of
the fire and brilliance of a Round cut with the elegance of an Emerald Cut.
This combination makes the Radiant Cut a very popular choice for Rings. The
length-to-width ratio of a Radiant Cut will determine how square or rectangular
it appears when viewed face-up. In a square Radiant cut, the length-to-width
ratio is between 1.00 and 1.05, in a rectangular Radiant Cut, the
length-to-width ratio is greater than 1.10.
Cushion – This shape also known as “Pillow Cut”, is an
antique cut that has rounded corners and deep facets. A Cushion Cut diamond has
a wonderfully romantic and classic look that is enjoying a surge in popularity.
Cushion cuts are available in shapes that range from a square to a rectangle.
The length-to-width ratio of a Cushion Cut will determine how square or
rectangular it appears when viewed face-up. In a square Cushion cut, the
length-to-width ratio is between 1.00 and 1.05, in a rectangular Cushion Cut,
the length-to-width ratio is greater than 1.15.
Pear – The Pear Cut is in the shape of a tear-drop, and
is a variation of a Round Cut. This hybrid cut combines the best qualities of
an Oval and a Marquise cut to produce a dazzlingly brilliant diamond. Many of
the largest stones ever discovered have been cut into this shape. Pear cut
shape is extremely popular for rings and pendants. The traditional Pear shape
will have a length-to-width ratio ranging from 1.45 to 1.75.
Heart – The Hear shape diamond is extremely popular with
the ultimate romantics, and is a variation of the Round Cut. This shape is
essentially, and rather untechnically, a Par shape with a cleft on top. In this
shape, the cutter’s skill is evident in the even cut and well defined outline.
The length-to-width ratio determines the face up appearance of a Heart Shape
Diamond. In a traditional heart shape diamond, the length-to-width ratio should
range from 0.90 to 1.15.
Trillian - Also known as Trilliants or Triangles, this is
a brilliant cut diamond, which is triangular in shape. This shape was first
developed in Amsterdam, and the shape can vary from pointed corners to more
rounded triangular shapes. The shape is very popular for earrings and pendants,
as well as for accents in three stone rings and other settings. The
length-to-width determines the face up appearance, and should mostly be in the
range of 1:1.