Jacob's Heart Preform
Gemology Projectopen
- L/W
- 101%
- Design RI
- 2.16
- H/W
- 75%
- Gear
- 96
- V/W³
- 0.350
- Symmetry
- 1 (mirrored)
- Facets
- 31
- Tiers
- 17
- Crown
- 15
- Pavilion
- 8
Wireframe
Pavilion
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 4056 | |
| G2 | 90.00° | 3561 | |
| G3 | 90.00° | 3066 | |
| G4 | 90.00° | 2472 | |
| G6 | 90.00° | 1185 | |
| G7 | 90.00° | 789 | |
| G8 | 90.00° | 96 | |
| G5 | 90.00° | 1878 | |
| P1 | 0.00° | 24 |
Crown
| # | Angle | Facets | Notes |
|---|---|---|---|
| P8 | 46.17° | 96 | |
| P7 | 42.41° | 789 | |
| P4 | 41.55° | 30.01999999999999665.98000000000002 | |
| P3 | 41.33° | 3561 | |
| P6 | 40.90° | 1185 | |
| P1 | 40.00° | 2472 | Cut @ 39.30� initially, Cut P2-P4 then come back and cut @ 40� to TCP |
| P5 | 39.65° | 1878 | |
| P2 | 39.30° | 4056 | Cut to same depth as P1 then cut past about 6% of stone length |