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| First Wave - designed by Jeff R. Graham jeff@faceters.com ©1998 | |
|---|---|
| Angles for R.I. = 1.73 | 79 facets + 21 facets on girdle = 100 |
| 3-fold, mirror-image symmetry | 96 index |
|
L/W = 1.011 P/W = 0.391 C/W = 0.198 |
H/W = 0.572 |
| Vol./W^3 = 0.187 | Brightness at 0 degrees tilt for R.I. = 1.62 90.1% Light Return |
| Pavilion | |||
|---|---|---|---|
| P1 | 43.00 |
96-32-64 |
Cut to center point. |
| P2 | 43.18 | 06-26-38-58-70-90 | Cut to center point. |
| P3 | 42.80 | 09-23-41-55-73-87 | Cut to center point. |
| P4 | 41.90 | 12-20-44-52-76-84 | Cut to center point. |
| P5(G) | 90.00 | 96-32-64 | Cut to meet P1. |
| P6(G) | 90.00 | 03-29-35-61-67-93 | Cut to meet P2. |
| P7(G) | 90.00 | 06-26-38-58-70-90 | Cut to meet P3. |
| P8(G) | 90.00 | 09-23-41-55-73-87 | Cut to meet P4. |
| P9 | 41.00 | 07-25-39-57-71-89 | Cut to meet girdle. |
| P10 | 38.99 | 16-48-80 | Cut to meet girdle. |
| P11 | 38.00 | 09-23-41-55-73-87 | Cut to meet P3,P4,P10. |
| P12 | 38.84 | 96-32-64 | Cut to center point, meet P1,P2,P9... |
| Crown | |||
|---|---|---|---|
| C1 | 42.00 |
96-32-64 |
Cut to meet girdle. |
| C2 | 36.00 | 03-29-35-61-67-93 | Cut to meet girdle. |
| C3 | 32.00 | 05-27-37-59-69-91 | Cut to meet girdle. |
| C4 | 32.00 | 03-29-35-61-67-93 | Cut in NO MEETS. |
| C5 | 34.07 | 96-32-64 | Cut to meet level with C4. |
| C6 | 33.28 | 02-30-34-62-66-94 | Cut to meet girdle. |
| C7 | 32.03 | 01-31-33-63-65-95 | Cut to meet C5,C6. |
| C8 | 27.53 | 96-32-64 | Cut to meet C5. |
| T | 0.00 | Table | Cut to meet C3,C4,C6,C7,C8. |
First Wave - Cutting Remarks
I was asked for three designs for the USFG newsletter that I would consider to be tough and a challenge to cut. This is perhaps the hardest of the three to cut. I also think it is one of the most unusual. This is a very tough design to cut for several reasons. This design will cut well in most man-made material, Sapphire, CZ, Spinel, YAG...
The “wave” girdle is hard to judge until you have cut the design a couple of times. It is critical that the pavilion be cut to exactly center point. There are several tight meet points that are easy to cut through on both the pavilion and the crown. The C4 tier has no meets and even though it appears to “meet” C2 it does not... (see diagram below) last but not least the meet points on the table are tough because of the amount of them.
Cutting Notes... The pavilion needs to be cut to center point first, then the girdle is cut in (it is uneven, wave shaped). The girdle facets need to be even and the same all the way around. If your machine is off it will show. The C4 tier has no meet points, it cuts to about 10% from the edge of the girdle. If you are off a little it will change the rest of the meets. When you cut C6 in you will be able to tell if C4 is correct or not. At this point you may need to do some touching up... Below is how the C4 tier should look when cut in...
Enjoy cutting your "First Wave"... Drop me an email to let me know your results and what you've cut, or feel free to inquire if you have any questions or need some help regarding this design.
Random - Cosine - ISO
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