Lighthouse Beacon

by Arya Akhavan (August 2013)
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Gemology Projectopen
L/W
115%
Design RI
1.62
H/W
75%
Gear
96
V/W³
0.260
Symmetry
3 (mirrored)
Facets
61
Tiers
13
Crown
37
Pavilion
24

Have you seen Jeff Graham's "Light House"? Well, I wanted to recreate that effect, but in a more complicated hexagonal version with a more interesting pavilion. I have to say, this turned out far better than I expected! Works in materials from quartz to CZ (RI = 1.54 - 2.16) with no changes, but I prefer it in rubellite tourmaline. Suggested size = 8-15 mm

Wireframe

Lighthouse Beacon 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
 82440567288
Set stone size.
P250.00°
 82440567288
Level girdle.
P345.12°
 92341557387
Meet P1, G1, P2
P143.34°
102242547486
Cut to centerpoint.

Crown

#AngleFacetsNotes
C140.00°
 82440567288
Set girdle width.
C529.21°
164880
Meet G1, C1
C228.92°
 62638587090
Meet G1, C1
C325.44°
 42836606892
Meet G1, C1, C2
C424.09°
 23034626694
Meet G1, C1, C2, C3
C623.67°
164880
Meet C1, C2, C5
C718.59°
164880
Meet C2, C3, C6
C815.23°
164880
Meet C3, C4, C7
T0.00°
24
Meet C4, C8