Grade Detail Information
1. Grade AAA (Top Quality)
- Flawless on at least 90% of pearl’s surface
- Only 10% of pearl’s surface may exhibit slight, concentrated imperfections
- Only a single deep inclusion allowable
- Pearl should drill or set clean to virtually clean
- Luster is very high
2. Grade AA (High Quality)
- Flawless on at least 80% of pearl’s surface
- Only 20% of pearl’s surface may exhibit slight, concentrated imperfections
- Only one or two deep inclusions allowable
- Pearl should drill or set clean to nearly clean
- Luster is high to very high
3. Grade A (Medium quality)
- Flawless on at least 70% of pearl’s surface
- Only 30% of pearl’s surface may exhibit slight, concentrated imperfections
- Only one or two deep inclusions allowable
- Pearl should drill or set nearly clean
- Luster is high to very high
4. Grade B (Commercial quality)
- Flawless on at least 40% of pearl’s surface
- Up to 60% of pearl’s surface may exhibit slight, concentrated imperfections
- Deep inclusions are limited to 10% of pearl’s surface
- Luster is medium to very high-