Symbol

Meaning

Definition

F Flawless Free from all inclusions or blemishes.
IF Internally Flawless No inclusions visible at 10x magnification.
VVS1 Very Very Slightly Included #1 Inclusions that are extremely difficult to locate at 10x.
VVS2 Very Very Slightly Included #2 Inclusions that are very difficult to locate at 10x.
VS1 Very Slightly Included #1 Minor inclusions that are difficult to locate at 10x.
VS2 Very Slightly Included #2 Minor inclusions that are somewhat difficult to locate at 10x
SI1 Slightly Included #1 Noticeable inclusions that are easy to locate at 10x.
Sl2 Slightly Included #2 Noticeable inclusion that are very easy to locate at 10x.
I1 Included #1 Obvious inclusions. Somewhat easy to locate with the unaided eye
I2 Included #2 Obvious inclusions. Easy to locate with the unaided eye.
I3 Included #3 Obvious inclusions. Very easy to locate with the unaided eye

GIA

 
D  
E  
F Colorless
G (White)
H  
I  
J  
K Near Colorless
L (White)
M  
N,O,P,Q,R Faint Yellow
S,T,U,V,W,X,Y,Z Light Yellow

* The Above Chart Shows the Diamond Clarity Grading Guide.