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• The AGS 0-10 Grading System - Cut Grade - Color Grade - Clarity Grade - Research and Technology - The Making of Great    Performance - Peace of Mind

The AGS 0-10 Grading System The AGS 0-10 grading scale is easy to understand. The highest possible grade is 0; 10 is the lowest. For example, a diamond with a color grade of 3 has less color than a diamond with a color grade of 5. When writing the grades of a diamond, cut is first, then color, then clarity, and then carat weight. For example, a diamond that is the finest cut, colorless, free of inclusions and blemishes, and one carat in weight would be written as: 0/0/0 — 1.000 carat. In the AGS Diamond Grading Standards, this would be known as a Triple Zero™.

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