Lapidary - Cutting Diamond Shapes
Lapidary is the name given to the art of cutting, shaping, polishing and creating jewelry from diamonds. The most appropriate of the cuts and shapes is selected by the lapidary to enhance their lustre, transparency, refraction and dispersion of light. The Art of cutting diamonds into different shapes is described in detail via the following link:
What are the different Diamond Shapes?
What are the different diamond shapes? The names of the most popular diamond shapes are Asscher, Brilliant, Cushion, Emerald, Heart, Ideal, Marquise, Oval, Pear, Princess, Radiant, Rose, Round and Trilliant or Trillion Cut Diamonds what shape are they? What are the Fancy Cut diamonds? What are Step or Table Diamonds? The following table is a quick guide to diamond shapes.
Diamonds are Forever...
Shape / Cuts - Styles & Names of Shapes and Cuts
Round Diamond Shapes - Brilliant, Eight or Single, Old, Swiss, Rose cuts
Square / Rectangle - Asscher, Emerald, Princess, Radiant & Cushion cuts and shapes
Oblong Shapes - Oval, Teardrop / Pear Shapes & Princess cuts
Triangular - Trillion (aka Trilliant, Trielle) shapes
Fancy Cuts & Shapes
Emerald, Marquise ( Navette ), Heart, Oval, Pear, Baguette,
Teardrop, Trillion and Princess cuts and shapes
Step Cuts & Shapes
Asscher, Marquise, Emerald and Oval Shapes
Step Cuts - Square, Oblong or Rectangle Diamond Shapes
Many Square, Oblong or rectangular diamonds are 'Step cut' or 'Table cut' which the cutting style is often used in Marquise, Emerald and Oval diamond shapes. The facets on a 'Step cut' are cut in steps. The crown, pavilion, and the table are all cut in rectangular facets. These diamonds are bright, clear and shiny in appearance as its facets usually span the length or width of the stone, the facets gradually decreasing as they approach the table producing Square, Oblong or Rectangle diamond shapes.
Fancy Cuts and Shapes
Fancy cut diamonds and other stones include the Emerald, Marquise, Heart, Oval, Pear and Princess cuts and shapes. Fancy Cuts and Shapes are all ways of cutting a diamond or other stone to maximize the carat weight. A rough diamond which might only yield a half carat in a Brilliant Cut might yield another 50% if cut into one of the above shapes. Fancy Cuts and Shapes allow the cutter to use the best attributes of a rough diamond and eliminate inclusions and blemishes.
Popular Diamond Shapes
The most popular fancy cuts and shapes include:
- Marquise or Navette shapes
- Princess Cut aka Square Brilliant
- Heart Shapes
- Pear Shapes aka teardrop or oval shapes
- Trillion - triangular shapes
Description of the Emerald Cuts - Square Shapes
The description of an Emerald Cut Diamond is: A rectangular or square shaped cut with truncated corners and stepped facets, typically parallel to the girdle. The emerald cut diamond reflects less light than the standard brilliant cuts and needs to be of the highest quality as any inclusions can be visible.
Description of the Asscher Cuts - Square Shapes
The description of an Asscher Cut Diamond shapes: A forerunner of the emerald cut requiring a four-pronged setting. It is square, step cut shape with cropped corners. An almost octagonal outline enhances the brilliance of the stone.
Description of the Cushion Cuts - Square Shapes
The description of an Cushion Cut Diamond is: A four sided deep square or rectangle cut with rounded edges and large facets - it has a cushioned shaped girdle. The cut is usually multi-faceted to give the highest possible light refraction and is therefore especially suited for candlelight.
Description of the Princess Cuts - Square / Rectangular / Oval shapes
The description of an Princess Cut Diamond is: A relatively new shape which is usually square but sometimes oblong. It has a brilliant cut arrangement of facets instead of a step cut, which is usually found in square cut diamonds like the Emerald style. The Princess produces a much more brilliant diamond than a traditional step cut square or oblong and has some of the sparkle of a Round brilliant cut.
Description of the Brilliant Cuts - Round Shapes
The description of an Brilliant Cut Diamond shapes: The modern round brilliant diamond consists of 56-58 facets including the culet. Between the table and the girdle are generally thirty-two facets, and below the girdle twenty-four. The facets maximize the volume of light that is reflected from the inside and produce the greatest brilliance. Other round diamond shapes include the Eight Cut or Single Cut, Old Cut, Swiss Cut, Rose Cut.
Description of the Heart Shaped Cuts - Heart Diamond Shapes
The description of an Heart Cut Diamond is: Essentially a pear-shaped diamond with a cleft at the top containing 59 facets. The shape of the heart makes this diamond highly desirable for romantic occasions such as Valentine's Day and anniversaries.
Description of the Oval Cuts - Oval Shapes
The description of an Oval Cut Diamond is: Most oval diamonds are like a squashed round brilliant - a modification of the round brilliant cut. Aspect ratio of an Oval cut: The ratio of the length to the width should be about 1.5:1. Their depth to diameter ratio varies so they can never be a perfect proportion which results in a loss of some brilliance.
Description of the Marquise Cuts - Oval Shapes
The description of an Marquise Cut Diamond is: The Marquise shape is like a long oval which has been stretched out to a point at each end. They are most often seen as center diamonds for engagement rings and wedding rings to balance the long, narrow shape. The diamond should be of the highest quality with regard to its color and clarity.
Description of the Pear Cuts (aka Teardrop shapes) - Half Oval - Half Marquise Shapes
The description of an Pear Cut Diamond is best described as being one half oval, and the other half marquise - pear-shaped or teardrop shaped. The stone is pointed at one end and round at the other. Ideally cut pear shapes have 58 facets. Aspect ratio of a Pear or teardrop cut: The ratio of the length to the width should be about 1.5:1.
What constitutes good cuts and diamond shapes? This is effected by several different elements which have a large impact on a diamond's brilliance which include the Width and Depth of the stone, the Symmetry and the alignment of a diamond's facets and the polish. Clarity is a measure of a diamond's blemishes and inclusions which also effect the brilliance of diamonds and their sparkle because they interfere with the passage of light travelling through the precious stone. The skill of the jeweller will ensure that diamonds have a suitable cut and shape to give the most beautiful results in respect of their lustre, transparency, refraction and dispersion of light.
Diamonds - Precious - Stone - Guide - Heart - Color - Facts - Information -Info - Jewelry
Jewellery - Shapes - Marquise - Oval - Pear - Heart - Square - Rectangular
Triangular - Round - Heart - Diamond