The Oath

Suite: Insignia
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Gemology Projectopen
L/W
100%
Design RI
2.16
H/W
56%
Gear
96
V/W³
0.201
Symmetry
2 (mirrored)
Facets
147
Tiers
22
Crown
25
Pavilion
122

by Arya Akhavan (January 2013)

I was supposed to make a Batman insignia, but that was too difficult. Instead, I ended up with this Green Lantern insignia. It allows for brilliance and good light return, while also showing the design clearly. Works in materials from YAG to CZ (RI = 1.83- 2.16) with no changes. Don't forget to frost the pavilion facets! Suggested size = 10-20 mm

Wireframe

The Oath 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
 3 91521273339455157636975818793
P270.17°
 9395787
Level girdle.
P364.87°
15336381
Level girdle.
P159.77°
 3455193
Set girdle level.
P559.34°
 6425490
Meet G1, P1, P2
P458.72°
21276975
Level girdle.
P857.49°
 5435391
Meet G1, P1, P2, P5
P1154.75°
9648
Meet G1, P1
P953.47°
 4445292
Meet P5, P6, P8
P748.15°
13356183
Meet P2, P3, P5, P6
P1047.39°
 5435391
Meet P5, P6, P8, P9 (frosted)
P644.40°
11375985
Meet P2, P3, P5 (frosted)
P1243.64°
9648
Meet P9, P10, P11 (frosted)
P1342.40°
 612182430364254606672788490
Meet P3, P4, P7 (only 4 facets meet - cut rest to centerpoint)
P1442.20°
96 61218243036424854606672788490
Meet P10, P12, P13 (frosted)
P1539.33°
 3 91521273339455157636975818793
Meet P10, P12, P13, P14 (only 4 facets meet - cut rest to centerpoint) (frosted)
P1639.21°
 3 91521273339455157636975818793
Meet P14, P15

Crown

#AngleFacetsNotes
C148.45°
 3 915333945515763818793
Set girdle width.
C339.46°
12366084
Meet G1, C1
C225.58°
21276975
Level girdle.
C423.82°
22267074
Meet G1, C2
T0.00°
24
Meet C1, C2, C3