Clarity Grade defines the presence of inclusions or blemishes in a gemstone when viewed in the face-up position.
| Clarity Grade | Description (Face-Up Position) |
|---|---|
| **Clean** | In the face up position, **no inclusion or blemishes** are visible by naked eye and loupe. |
| **Lightly Inclusion** | In the face up position, inclusions are **difficult to see by naked eye** and have no effect on transparency and appearance of the stone. |
| **Moderately Inclusion** | In the face up position, inclusions are **easily visible by naked eye** and have a minor effect on transparency and appearance of the stone. |
| **Highly Inclusion** | In the face up position, inclusions are **very easily visible by naked eye** and have a distinct effect on transparency and appearance of the stone. |
| **Heavily Inclusion** | In the face up position, inclusions are **extremely easily visible** and have a significant effect on the appearance of the stone. |
Clean: No visible inclusions (naked eye or loupe).
Lightly Inclusion: Difficult to see; no effect on appearance.
Moderately Inclusion: Easily visible; minor effect on transparency.
Highly Inclusion: Very easily visible; distinct effect on transparency.
Heavily Inclusion: Extremely easily visible; significant effect on appearance.