Hanabi

Marco Voltolini
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Gemology Projectopen
L/W
100%
Design RI
1.54
H/W
64%
Gear
80
V/W³
0.212
Symmetry
5
Facets
112
Tiers
11
Crown
51
Pavilion
61

Angles for quartz. Requires carving (see notes/discussion).

Wireframe

Hanabi 3D view
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Pavilion

#AngleFacetsNotes
290.00°
80 4 81216202428323640444852566064687276
Set stone size
141.00°
80 4 81216202428323640444852566064687276
Cut to centerpoint
339.00°
 2 6101418222630343842465054586266707478
New centerpoint, meet girdle
40.00°
20

Crown

#AngleFacetsNotes
C43.70°
8016324864
Meet girdle, B
B40.08°
 4122028364452606876
Meet girdle, A
A32.00°
 824405672
Set girdle thickness
E31.68°
 622385470
Cut to meet the girdle
F29.19°
 218345066
Meet B, C, E
D18.38°
80 4 81216202428323640444852566064687276
5 facets meet A, C
G0.00°
20
Float a tiny table