Natural diamonds are the result of carbon exposed to tremendous heat and pressure deep within the earth. This process can result in a variety of internal characteristics called ‘inclusions’ and external characteristics called ‘blemishes.’
Evaluating diamond clarity involves determining the quantity, size, relief, nature, and position of these characteristics, as well as how they affect the overall appearance of the stone. While no diamond is 100% pure, the closer it comes to perfection, the higher its value.
The GIA Diamond Clarity Scale has 6 categories, some of which are further divided, for a total of 11 specific grades.