whiteflash.com/about-diamonds/diamond-education/the-radiant-cut-diamond.htm I make no claim that the design is the same as the original by Henry Grossbard.
| # | Angle | Facets | Notes |
|---|---|---|---|
| G1 | 90.00° | 24487296 | CAM Preform angle 31.00 |
| G2 | 90.00° | 12366084 | CAM preform angle 26.29 |
| P1 | 58.69° | 24487296 | Level girdle |
| P2 | 49.62° | 24487296 | Meet 3-5-7 |
| P3 | 46.63° | 12366084 | Meet lowest point of 3 on girdle to relevel girdle |
| P4 | 46.62° | 123254749717395 | Meet 3-6-6-3 |
| P5 | 43.50° | 816324056648088 | Meet preform TCP or make new TCP, just cutting away PF1 and PF2. |
| P6 | 40.40° | 12366084 | Meet 3-4-3; create PCP |
| P7 | 31.00° | 24487296 | TCP |
| P8 | 26.29° | 12366084 | Meet TCP |
| # | Angle | Facets | Notes |
|---|---|---|---|
| C1 | 79.77° | 12366084 | Level girdle with temporary facet |
| C2 | 44.80° | 24487296 | Set girdle width |
| C3 | 41.31° | 12366084 | Meet girdle, overwriting PF3 |
| C4 | 31.64° | 24487296 | Meet A-PF3-A |
| C5 | 27.66° | 12366084 | Meet A-B-C-D |
| C6 | 23.53° | 222264650707494 | Meet A-B-C |
| T | 0.00° | 96 | Meet D-E-D (and B-D-B) |