Definitions for "CLARITY GRADE"
A category used to describe the amount or absence of inclusions within a diamond. The GIA. Diamond clarity grading scale consists of eleven clarity grades. They are, in order of decreasing quality: FL (Flawless), IF (Internally Flawless), VVS1 and VVS2 (Very Very Slightly Included), VS1 and VS2 (Very Slightly Included), SI1 and SI2 (Slightly Included), I1 and I2 and I3 (Imperfect). Within the jewelry industry the clarity grade SI3 is used because the I1 and SI2 clarity grades encompass a vast range of qualities within their grades, which cannot be priced similarly based on the clarity grade alone. The diamond Council and many Gem Laboratories use the SI3 grade. AGS, who has created their grading system however, has not acknowledged the SI3 grade to date.
One of the four value factors of a diamond. Diamonds are ranked on a scale from flawless (no inclusions visible under 10x magnification) to included (eye visible inclusions).
Diamonds are ranked on a scale from flawless, which is no inclusions visible under 10x magnification, to included i.e. eye visible inclusions. Clarity grade is one of the such four value factors.