Long Octagon for Zircon
Gemology Projectopen
- L/W
- 119%
- Design RI
- 1.81
- H/W
- 80%
- Gear
- 96
- V/W³
- 0.366
- Symmetry
- 2 (mirrored)
- Facets
- 65
- Tiers
- 13
- Crown
- 29
- Pavilion
- 36
Wireframe
Pavilion
| # | Angle | Facets | Notes |
|---|---|---|---|
| 4 | 90.00° | 3455193 | Esytablish width |
| 5 | 90.00° | 21276975 | Meet 1-1-4, establish length |
| 3 | 66.28° | 3455193 | Meet 1-2-4-5, level girdle |
| 2 | 61.09° | 21276975 | Meet 1-4-5, level girdle |
| 1 | 43.50° | 3 9131521273335394551576163697581838793 | Cut to PCP |
Crown
| # | Angle | Facets | Notes |
|---|---|---|---|
| A | 40.61° | 21276975 | set girdle width |
| B | 37.00° | 3455193 | Level girdle |
| D | 34.09° | 20286876 | Meet A-B-C at girdle |
| C | 30.13° | 4445292 | Meet A-B at girdle |
| E | 27.59° | 5435391 | Meet A-B-C-D at girdle |
| F | 26.49° | 16326480 | Meet A-B-C-D-E at girdle |
| G | 11.43° | 9395787 | Meet E-C-C-E |
| T | 0.00° | 24 |