|
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. |