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About Diamond Shapes

Learn about diamonds

About Diamond Shapes

Round Brilliant Cut (RBC) The ultimate classic! The round cut diamond is the most popular diamond shape, representing approximately 75% of all diamonds sold. The round brilliant-cut was developed by Marcel Tolkowsky in 1919. Princess Cut The princess is traditionally a square cut or rectangular cut, with many variations. A princess cut diamond should always be set with prongs that protect the four corners. Cushion Cut Cushion-cut diamonds have rounded corners and feature larger facets to increase their fiery brilliance. They combines a square cut with rounded corners, much like a pillow (cushion). Marquise Cut The Marquise cut originated in...

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Holloway Cut Adviser

Learn about diamonds

Holloway Cut Adviser

A Rejection Tool The Holloway Cut Adviser is is a computer algorithm of scoring the cut of Round Brilliant diamonds. The score represents a diamond's potential visual performance. Visual performance is graded in terms of desirable characteristics; such as, potential Light Return, Fire, Scintillation and Spread. Taking these factors into account, an overall score is produced for a diamond. Most people prefer stones that rate 1-2 on a scale where: 0-2 Excellent, 2-4 Very Good, 4-6 Good, 6-8 Fair, and 8-10 Poor. Zero is almost impossible since many of the factors conflict. The HCA is intended to be a Diamond...

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