| GemCad Ray Traces for RI = 1.63 | ||
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||
| Random Model | Cosine Model | ISO Model |
| Barion Square Cushion 1
GemCad Derived Rendering by Bob Keller July 2000 |
|
| Angles for R.I. = 1.63 | 81 facets + 16 facets on girdle = 97 |
| 4-fold, mirror-image symmetry | 96 index |
| L/W = 1.000 T/W = 0.515 T/L = 0.515 P/W = 0.526 C/W = 0.171 | H/W = (P+C)/W+0.02 = 0.717 P/H = 0.734 C/H = 0.239 |
| Vol./W^3 = 0.312 | Brightness at 0 degrees tilt for RI = 1.63
COS = 81.0 ISO = 89.6 |
| Pavilion | |||
|---|---|---|---|
| 1 | 41.50 | 03-09-15-21-27-33-39-45-
51-57-63-69-75-81-87-93 | Cut to meet at temporary culet |
| g2 | 90.00 | 03-21-27-45-51-69-75-93 | Meet 1 establish size, girdle outline |
| g3 | 90.00 | 01-23-25-47-49-71-73-95 | Meet 1,g2 |
| 4 | 65.00 | 03-21-27-45-51-69-75-93 | Meet 1,g2 |
| 5 | 65.76 | 01-23-25-47-49-71-73-95 | Meet g2,g3,4 |
| 6 | 40.00 | 06-18-30-42-54-66-78-90 | Meet 1,4,5 - permanent culet |
| Crown | |||
| A | 50.00 | 03-21-27-45-51-69-75-93 | Meet g2 establish upper girdle line |
| B | 46.00 | 01-23-25-47-49-71-73-95 | Meet A,g2,g3 |
| C | 36.00 | 12-36-60-84 | Meet A,g2 |
| D | 41.12 | 96-24-48-72 | Meet A,B,C - B,g3 |
| E | 28.00 | 96-24-48-72 | Meet A,B,C,D |
| F | 20.00 | 03-21-27-45-51-69-75-93 | Meet A,B,C,D,E |
| G | 20.48 | 12-36-60-84 | Meet A,B,C,D,E,F |
| T | 0.00 | Table | Meet E,F - G,F |
