| Gemstone | |
| Carat Weight Filtering | 10-20 ctw |
| Gemological Lab | Staff Gemologist |
| Carat Weight | 13.17 carats total |
| Measurements | 21.56 x 21.02 x 5.6mm |
| Opal | |
| Opal Origin Country | Australia |
| Origin Region or State | Lightning Ridge |
| Type | Black Opal |
| Cut Technique | Cabochon |
| Shape | Trilliant |
| Color Attributes | Green/Blue |
| Common | |
| Birthstone Month | October |