purity and rarity
What is Diamond Clarity?
Diamond clarity is a measure of the purity and rarity of the stone, graded by the visibility of these characteristics under 10-power magnification. A stone is graded as flawless if, under 10-power magnification, no inclusions (internal flaws) and no blemishes (external imperfections) are visible.
The GIA Diamond Clarity Scale
The GIA Diamond Clarity Scale has 6 categories, some of which are divided, for a total of 11 specific grades.
No inclusions and no blemishes visible under 10x magnification
Internally Flawless IF
No inclusions visible under 10x magnification
Very Very Slightly Included VVS
Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
Very Slightly Included VS
Inclusions are observed with effort under 10x magnification, but can be characterized as minor
Slightly Included SI
Inclusions are noticeable under 10x magnification
Inclusions are obvious under 10x magnification which may affect transparency and brilliance