Pearl Grading
|
Tennyo Grade AAAA |
Hanadama Grade AAA |
AA | |
| Surface | 98% or cleaner pearl surface with either very minor or almost no blemish visible | 98% or cleaner pearl surface with either very minor or almost no blemish visible | Very minor with at least 95% of the pearl surface clean |
| Luster | Exceptionally strong (Highest quality in luster) | Very to exceptionally strong | Strong to very strong |
| Nacre | Extra thick | Extra thick | Thick |
| Shape | Perfectly round （Less than 2.00%） | Perfectly round （Less than 2.00%） | Perfectly round to round（Less than 3.00%） |