| LISTING OF STRUCTURAL DEFECTS IN CLARITY GRADES
|
GRADING |
|
Discernibility of structural defects |
Clarity grade Loupe clean . |
Clarity grade of VVS and lower |
| Not, discernible or discernible only with great difficulty
with a 10 x loupe |
No mention |
No influence |
| Very difficult to discern with a 10 x loupe |
Description under IDENTIFICATION OF DEFECTS: "Minor twinning
lines" "Minor growth lines" "Minor growth phenomena" |
No influence |
| Not too difficult to discern With a 10 x loupe |
Description under REMARKS: "Twinning lines" "Growth lines"
"Growth phenomena" |
The structural defects can diminish the clarity grade (The
lower the clarity grade, the smaller the influence) . |
| Easily discemible with a 10.x loupe |
The structural defects diminish the clarity grade i.e. the
stone is no longer loupe clean. |
The structural defects can diminish the clarity grade (The
lower the clarity grade, the smaller the influence) |