SHAPES
HOW THEY AFFECT YOUR DIAMOND

ROUND SHAPED DIAMONDS
This shape has set the standard for all other diamond shapes, and accounts for more than 75% of diamonds sold today. Its 58-facet cut, divided among its crown (top), girdle (widest part) and pavilion (base), is calibrated through a precise formula to achieve the maximum in fire and brilliance. 
ASSCHER SHAPED DIAMONDS
Also called a "square Emerald-Cut" because it is made using the step-cut process and has cropped corners. Because of the cropped corners, it is almost octagonal at first glance. They are bright, shiny, and clear in appearance. Like the Emerald-Cut Diamonds, they have the clarity of glacier-water ice, allowing you to see all the way through it. Since inclusions are obvious, it is important to get as flawless a gem as possible. 
RADIANT SHAPED DIAMONDS
This square or rectangular cut combines the elegance of the emerald shape diamond with the brilliance of the round, and its 70 facets maximize the effect of its color refraction. Because of its design, this cut requires more weight to be directed toward the diamond's depth in order to maximize brilliance. Depth percentages of 70% to 78% are not uncommon. 
EMERALD SHAPED DIAMONDS
This is a rectangular shape with cut corners. It is known as a step cut because its concentric broad, flat planes resemble stair steps. Since inclusions and inferior color are more pronounced in this particular cut, take pains to select a stone of superior clarity and color. 
PEAR SHAPED DIAMONDS
A hybrid cut, combining the best of the oval and the marquise, it is shaped most like a sparkling teardrop. It also belongs to that category of diamond whose design most complements a hand with small or average-length fingers. It is particularly beautiful for pendants or earrings 
MARQUISE SHAPED DIAMONDS
An elongated shape with pointed ends inspired by the fetching smile of the Marquise de Pompadour and commissioned by the Sun King, France's Louis XIV, who wanted a diamond to match it. It is gorgeous when used as a solitaire or when enhanced by smaller diamonds. 
OVAL SHAPED DIAMONDS
An even, perfectly symmetrical design popular among women with small hands or short fingers. Its elongated shape gives a flattering illusion of length to the hand. 
PRINCESS SHAPED DIAMONDS
This is a square or rectangular cut with numerous sparkling facets. It is a relatively new cut and often finds its way into solitaire engagement rings. Flattering to a hand with long fingers, it is often embellished with triangular stones at its sides. Because of its design, this cut requires more weight to be directed toward the diamond's depth in order to maximize brilliance. Depth percentages of 70% to 78% are not uncommon. 
HEART SHAPED DIAMONDS
This ultimate symbol of romance is essentially a pear-shaped diamond with a cleft at the top. The skill of the cutter determines the beauty of the cut. Look for a stone with an even shape and a well-defined outline.