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Round Brilliant Diamond "Cut"
The cut of a diamond determines its brilliance. A poorly cut diamond will have a dull appearance even if it has perfect colour and clarity. The cut is considered one of the most important diamond characteristics by gemmologists. It is based on factors that determine the light performance, dimensions, and finish of a stone.
The cut should reflect the maximum amount of light to the viewer's eye. For example, if a diamond is cut too shallow, light will be lost out of the pavilion (bottom) and the diamond will lose brilliance. If the diamond is cut too deep, the light will escape through the sides and the diamond will appear dark.
Since Round Brilliant cut diamonds are designed to maximize brilliance, you need to be sure that you are familiar with the qualities of a good cut. A Round Brilliant diamond makes a beautiful engagement ring as a solitaire, an amazing 3 stone ring, or set with other stones.
Round diamonds are classified as excellent, ideal, very good, fair, or poor.
An excellent cut is the highest grade a diamond can receive from the Gemmology Institute of American or GIA. Excellent Cut Diamonds have optimal proportions and give the most brilliance and light return.
A very good cut diamond has depth and table percentages that fall just outside the "excellent" requirements set by the GIA. This diamond returns almost all the light and is similar to an ideal cut diamond. A very good cut diamond will sell for less than an ideal cut diamond yet possess very similar characteristics.
A good cut diamond reflects most of the light that enters it. A good cut diamond gives you good brilliance and will sell at a much lower price than an ideal or very good cut diamond. "Good" cuts are popular choices for engagement rings.
A fair cut diamond reflects a decent amount of light and will sell for much less than an ideal or very good cut diamond. A fair cut is a popular choice for people who want a decent cost savings to purchase a larger stone.
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Recommendations
When buying Round Brilliant cut diamonds, there are a few recommendations for getting the best diamond. We recommend a cut rating of Excellent or Very Good. For budget minded purchasers of Round Brilliant cut diamonds, you should follow the minimum Cut rating of Good.
Colour and clarity are something to consider carefully when choosing this cut. The Round Brilliant will give you more flexibility with balancing colour, cut, and clarity while still providing brilliance and fire.
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