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It is important to distinguish between cut and shape. The cut — brilliant, step or mixed — is the
arrangement of facets and determines the diamond’s brilliance. Shape is the contour into which the
diamond is cut.
Round
This shape is the most popular and accounts for more than 75 percent of all diamond purchases.
Princess
This square cut requires a higher depth percentage in order to maximize its brilliance. It has fewer
facets than the typical cuts. A princess cut diamond ring is very flattering to a hand with long fingers.
Radiant
TAnother square cut, this shape combines the squared corners of the emerald cut with the brilliance of
the round. With 70 facets, it requires a higher depth percentage in order to maximize its brilliance.
Emerald Cut
This rectangular shape is a step cut. It has fewer facets than a brilliant cut and is most attractive
in simple designs. Inclusions and inferior color may be more pronounced in this cut; higher grades of
color and clarity are recommended.
Pear
TResembling a teardrop, this hybrid cut combines the best of an oval and a marquise. It is one of the
most difficult shapes to cut and is often used for pendants and earrings. In a ring, this shape diamond
is especially flattering to a hand with small or average-length fingers.
Oval
Perfectly symmetrical, this elongated shape gives the illusion of length.
Marquise
Featuring an elongated shape and pointed ends, the marquise can often look larger than other shapes of the
same carat weight. According to legend, Louis XV of France commissioned this shape to match the smile of his mistress, the Marquise de Pompadour.
Heart
With this shape, the diamond has a tiny cleft at its top. Look for a plump stone with a well-defined outline and even shoulders.
Triangle
Having 25 facets on the crown and 19 facets on the pavilion, this shape is often used as a side stone.
Baguette
Small rectangular stones, baguettes are often used for accents.
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