Clarity
Clarity is the degree to which identifying characteristics known as inclusions are present in a diamond.
FL
FLAWLESS
Internall Flawless
No inclusions visible under 10x magnification
VVS
VVS1
VVS2
Very Very Slight Inclusion
Inclusions are minute, extremely difficult to locate under 10x magnification
VS
VS1
VS2
Very Slight Inclusion
Inclusions are minor, difficult to locate under 10x magnification
SI
SI1
SI2
Slight Inclusion
Inclusions are noticeable, relatively easy to locate under 10x magnification
I
I1
I2
I3
Imperfect
Inclusions are visible to the unaided eye