Pearl Identification and Grading | ||||||||||||
Species (Trade Term) | Amami Oshima Mabe Pearl (Pinctada Penguin) | |||||||||||
Approx. Size (mm) | Approx. 13.0 mm up | |||||||||||
Shape | Hemisphere | |||||||||||
Color | Bluish Gray | |||||||||||
Overtone | Orient | |||||||||||
Luster | Excellent | Very Good | Good | Fair | Poor | |||||||
Imperfection & Surface | Clean | Very Slightly | Slightly | Moderately | Heavily | Clean Only Face | ||||||
Matching | Excellent | Very Good | Good | Fair | Poor | N/A | ||||||
Nacre | Acceptable | Unacceptable | ||||||||||
Grade (PGS) | AAA | AA+ | AA | A+ | A | B | ||||||
Quantity of Pearls (Pcs.) | 1 | |||||||||||
Setting | ||||||||||||
| Material (s) | - | |||||||||||
Plated | - | |||||||||||
Gem (s) | - | |||||||||||
Measurement | - | |||||||||||
Remark: Each pearl is unique and may be slightly different in shape, size, imperfections, and color from the advertised image. | ||||||||||||
| *1 | *2 | *3 | *4 | *5 | *6 | *7 | *8 | 9 | 10 |
| 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up |
| BO24583 | BO24577 | BO24599 | BO24601 | BO24587 | BO24578 | BO24512 | BO24519 | BO24528 | BO24530 |
| 11 | 12 | *13 | *14 | *15 | *16 | 17 | 18 | 19 | 20 |
| 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up |
| BO24516 | BO24513 | BO24521 | BO24542 | BO24595 | BO24531 | BO24567 | BO24590 | BO24602 | BO24598 |
| *21 | *22 | *23 | *24 | *25 | *26 | *27 | *28 | -*29 | *30 |
| 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up |
| BO24506 | BO24552 | BO24591 | BO24546 | BO24554 | BO24527 | BO24596 | BO24597 | BO24551 | BO24538 |
| *31 | *32 | *33 | *34 | 35 | 36 | *37 | *38 | 39 | 40 |
| 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up | 13.0up |
| BO24556 | BO24593 | BO24603 | BO24600 | BO24524 | BO24532 | BO24592 | BO24557 | BO24523 | BO24566 |
| *41 | *42 | ||||||||
| 13.0up | 13.0up | ||||||||
| BO24534 | BO24547 |
