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The cut of a diamond refers to its proportions. Of the 4C's, the cut is the aspect most directly influenced by man. The other three are dictated by nature.
Quite often the cut of a diamond is confused with its shape. Diamonds are cut into various shapes depending upon the original form of the uncut diamond, which is referred to as “rough.” Whatever the shape, a well-cut diamond is better able to reflect light.
A diamond's ability to reflect light determines its display of fire and brilliance. Diamonds are usually cut with 58 facets, or separate flat surfaces. These facets follow a mathematical formula and are placed at precise angles in relation to each other. This relationship is designed to maximize the amount of light reflected through the diamond and to increase its beauty.
When a diamond is cut to proper proportions, light is reflected from one facet to another and then dispersed through the top of the stone. Within the Well Cut standards are the Diamonds.com sub categories of Ideal, Excellent, and Very Good.
This range is very strict and combines the best in brilliance and fire. Technically, the head of the class.
This range is also of great beauty yet slightly more flexible regarding percentages. Many experts prefer the appearance of this range to Ideal.
This range is balanced between precise proportions and price considerations. Viewed by many as the best overall value in beauty and price.
When the cut of a diamond is too deep, some light escapes through the opposite side of the pavilion.
When the cut of a diamond is too shallow, light escapes through the pavilion before it can be reflected.
How do I know if a Diamond is Well Cut?
A well cut diamond is the secret to a beautiful and brilliant diamond. Like beauty itself, the true meaning of “well cut” is often found in the eye of the beholder. While you may prefer a particular set of proportions, someone else might prefer slightly different proportions. Personal preference, even among experts, will always be an issue in defining the best cut.
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