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Buying Diamonds with Confidence
If you know absolutely nothing about how to buy a diamond, you're in good company. Most people know little about the characteristics of diamonds or how to make an educated purchase. Of course, that’s why we’re here. There is no need for a diamond buying guide when you have American Gem Society as a resource! Our job is to help the public make informed decisions, and shopping for jewelry easier. We have precise standards for evaluating diamond quality, commonly known as the 4Cs: Cut, Color, Clarity and Carat Weight. These standards make it easy to compare different diamonds and understand their value.
To make buying diamonds even easier, the American Gem Society Diamond Grading Standards was created to evaluate three of the four value factors – cut, color and clarity – on its own 0-10 scale. The scales begin at 0 (zero), the highest grade, and go down to 10, the lowest. When you take these three factors and combine it with the carat weight, you get the final AGS Grade. When buying diamonds, don’t just rely on the sparkle in the store. Ask to see the American Gem Society Laboratories grading report so you can judge all the inherent factors that give the diamond its value.
To find a jeweler, see our list of knowledgeable and reputable retailers: