Diamond District

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Welcome to the NYC Diamond Districts Index page for NYCDD Diamond Standards designed to help you understand how we choose the highest quality of diamonds, the grading systems involved, and learn everything you need to know to help you choose the perfect diamond. At the NYC Diamond District, education is everything. The more you know, the better choices you can make.

The Five C’s:
Learn how the industry as a whole grades diamonds using the characteristics of Cut, Carat, Clarity, and Color. Learn More

How diamonds are weighed
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The importance of the cut to your brilliant diamond
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Inclusions, Abrasions, and how a diamond is rated
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How the color of your diamond affects the rating and value
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Anatomy of a Diamond:
Understanding the various features of diamonds
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Diamond Fluorescence:
The Pros and Cons of a fluorescent diamond
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The Amazing shapes of your diamond
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Diamond Polish:
How polish affects the value and quality of your diamond
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