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-