| GemCad Ray Traces for RI = 1.54 | ||
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| Random Model | Cosine Model 74.9 | ISO Model 82.6 |
| Square Emerald 1
A Simple Square Emerald / Step Cutting Tainer Designed by Bob Keller 06-08-02 for Ryan Thompson |
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| Angles for R.I. = 1.54 | 37 facets + 8 facets on girdle = 45 |
| 4-fold | 96 index |
| L/W = 1.000 T/W = 0.540 T/L = 0.540 P/W = 0.502 C/W = 0.160 | H/W = (P+C)/W+0.02 = 0.682 P/H = 0.736 C/H = 0.235 |
| Vol./W^3 = 0.284 | Brightness at 0 degrees tilt for RI = 1.54 COS = 74.9 ISO = 82.6 |
| Pavilion | |||
|---|---|---|---|
| a | 42.00 | 04-12-20-28-36-44-52-60-68-76-84-92 | Cut to culet point |
| g1 | 90.00 | 12-36-60-84 | Match a, set size |
| g2 | 90.00 | 96-24-48-72 | Meet a.a.g1 |
| Crown | |||
| 1 | 40.89 | 12-36-60-84 | Match g1 |
| 2 | 44.00 | 96-24-48-72 | Meet g1.g2.1 |
| 3 | 31.16 | 12-36-60-84 | Match 1 |
| 4 | 34.00 | 96-24-48-72 | Meet 1.2.3 |
| 5 | 21.76 | 12-36-60-84 | Match 3 |
| 6 | 24.00 | 96-24-48-72 | Meet 3.4.5 |
| t | 0.00 | Table | Level table |
| Cut as given in medium saturated amethyst, citrine, smoky or medium saturated colors of synthetic quartz. | |||
The Square Emerald 1 design file is available for GemCad/GemPrint users.
