Diamond Shapes and Cuts
EIGHT HEARTS (HEARTS AND ARROWS) DIAMOND
Taking three times longer to polish, and shaped by only one in a thousand diamond polishers, the Shimansky Eight Hearts diamond displays a perfect eight heart pattern when viewed from the bottom and a perfect eight arrow star when viewed from the top. The attention to detail and superior craftsmanship that this diamond cut demands results in perfect proportion and symmetry that reflects fire, brilliance and scintillation at their best.
CUSHION SHAPE DIAMOND
The shape of the Cushion is characterised by soft edges and rounded corners, resembling a cushion or pillow. This type of diamond cut has been popular since the first diamond cuts were developed. Cushion shape diamonds range from a rounded square shape to a more rectangular shape. If you prefer the squarer shape, look for a length-to-width ratio of 1.05 to 1.10:1. For a more rectangular shape, look for length-to-width ratios of greater than 1.15:1.
OVAL SHAPE DIAMOND
An Oval diamond is an elongated version of the Round Brilliant diamond. If well proportioned, this beautiful cut gives great brilliance, fire and scintillation. It is generally polished with 56 facets. Oval diamonds are also very popular as their length can accentuate long, slender fingers. The Oval shape has a larger surface area than a Round Brilliant diamond of the same carat weight, and is an excellent choice for those more concerned with size. The ideal length-to-width ratio is 1.5:1, but a range from 1.33:1 to 1.66:1 is widely acceptable.
ROUND BRILLIANT CUT DIAMOND
Round Brilliant cut diamonds offer timeless beauty. Polished with 57 facets and to ideal proportion and symmetry, Round Brilliant cut diamonds radiate with brilliance and sparkle. For over a century, diamond cutters and master craftsmen have perfected the Round cut using advanced theories of light behaviour, optic dispersion and geometry. When purchasing a Round Brilliant cut diamond, look for a cut grade of excellent or very good as a measure of its brilliance.
MARQUISE SHAPE DIAMOND
The Marquise has a slender shape characterised by two sharp points on either end. Like the Oval, the Marquise accentuates long, slender fingers and has a large surface area. The standard number of facets on a Marquise cut is 58. The Marquise shape was inspired by the fetching smile of the Marquise de Pompadour. King Louis XIV commissioned the cut, as he wanted a diamond to match her captivating smile. The optimal ratio of length-to-width is 2:1, although a range between 1.75 and 2.25:1 is also acceptable.
PEAR SHAPE DIAMOND
The Pear shape is a unique hybrid cut, shaped like a tear drop and combining the best of the Marquise and Round Brilliant cut. Well proportioned, it gives a depth of scintillation to the point of the diamond. Pear shapes are extremely popular in rings, earrings and pendants. Pear shapes are typically polished with 58 facets, and the optimal length-to-width ratio is between 1.50 and 1.75:1.
PRINCESS CUT DIAMOND
Square in shape and with pointed corners, the princess cut diamond is one of the most popular shapes of all fancy cut diamonds. Its beautiful brilliance and square shape makes it a favourite for engagement rings. Technically known as a ‘Square Modified Brilliant Cut’, the princess cut is a square version of the Round Brilliant cut with numerous sparkling facets. The optimal ratio of length to width is 1:1 for a perfect square.
RADIANT CUT DIAMOND
This rectangular cut features trimmed corners and combines the elegance of the Emerald shape diamond with the brilliance of the Round. Radiant cut diamonds have 70 facets in total, and are technically known as a ‘cut-cornered, rectangle (or square) modified brilliant diamonds’. Generally, if you are looking for a square cut, a Radiant shape’s length to width ratio is approximately 1.0 to 1.1:1. For a more rectangular shape, look for a ratio 1.11 to 1.5:1.
EMERALD CUT DIAMOND
The Emerald cut is an elegant diamond shape with step-like facets that is rectangular in shape with trimmed corners. Due to its larger, open table, this shape is often reserved for top colour and clarity diamonds. The Emerald cut is typically polished with 44 facets. Generally, the optimum length-to-width ratio for an Emerald cut diamond should be 1.35-1.65:1, although 1.25:1 to 1.75:1 is also acceptable.
SQUARE EMERALD (ASSCHER) CUT DIAMOND
The Square Emerald cut, also known as Asscher cut, is a unique diamond cut similar to an Emerald cut diamond. It has step-like facets with trimmed corners, but is square in shape. The Asscher cut was developed in 1902 by Joseph Asscher and was inspired by the table cuts of the Renaissance.
CRISS CUT DIAMOND
The Criss cut diamond evokes timeless style and overall beauty. This multifaceted Emerald-shaped diamond is elongated in shape with trimmed corners but unique in the step-like facets that cross each other in a criss-cross fashion. With more facets than the regular Emerald cut, it has a superior fire and brilliance. The facets continually bounce light off one another, bringing mesmerising life to the Criss cut diamond.
HEART SHAPE DIAMOND
Being the ultimate symbol of love, the heart shape diamond is for the true romantic. The modified brilliant cut takes skill and expertise to achieve the perfect balance. Its unmistakable shape adds to its popularity in pendants and solitaire rings.
The ideal length-to-width ratio for the heart shape diamond is .90 and 1.10.