TAKING THE GUESSWORK OUT OF DIAMOND BUYING.

Most people know little about diamonds. That's why the American Gem Society came into existence over 70 years ago. Thanks to Society members, we now have precise standards for evaluating diamonds, commonly known as the 4 Cs: Cut, Color, Clarity, and Carat Weight. The American Gem Society Diamond Grading Standards evaluate three of the four value factors — cut, color, and clarity — on its own 0 –10 scale. 0 (Zero) is the highest grade, and 10 is the lowest. AGS "0" indicates an AGS Ideal Cut diamond that has no color and no inclusions or internal characteristics. The three factors are expressed separately along with the fourth factor, the carat weight of the gemstone, for the final American Gem Society Grade.

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