Clarity ratings are determined by the amount and visibility of inclusions in a diamond. Inclusions consist of tiny pinpoints, markings, and clouding which affect the overall appearance of the diamond. There are two types of flaws within a natural diamond: inclusions and blemishes. Inclusions refer to the internal flaws of a diamond and blemishes refer to external or surface flaws.

In general, diamonds with fewer inclusions and blemishes will have a better clarity rating. This increases their brilliance and value. Diamonds with clarity grades VVS1 through SI2 have slight inclusions that may be visible to varying degrees under 10 x magnifications, but are generally not visible to the unaided eye. Diamonds with I1 clarity ratings contain inclusions that are easily seen under 10 x magnifications and may be visible to the unaided eye. Diamonds with I2 and I3 clarities have major inclusions that are easily seen without magnification.

FLFlawless: No inclusions under 10x.
IFInternally Flawless: No internal imperfections
VVS1-VVS2Very, Very Slightly Included: Contains minute inclusions that are extremely difficult for an experienced grader to locate under 10x magnification.
VS1-VS2Very Slightly Included: Contain minor inclusions that range from difficult to somewhat easy to see under 10x magnification.
SI1-SI2Slightly Included: Imperfections are visible under 10x magnification, and may be visible with the unaided eye.
I1Included: Diamonds with significant inclusions.
I2-I3Anjolee does not carry I2 and below grade qualities.