Dake, H C; Art of Gem Cutting, 6th Ed. (1956) p81;
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 41220283644526068768492 | |
| P1 | 45.00° | 41220283644526068768492 | |
| P2 | 35.00° | 961632486480 | |
| P3 | 25.00° | 961632486480 |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 45.00° | 41220283644526068768492 | |
| C2 | 35.00° | 961632486480 | |
| C3 | 25.00° | 961632486480 |