Vincalis the Agitator

(deep version)
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Gemology Projectopen
L/W
115%
Design RI
1.54
H/W
75%
Gear
96
V/W³
0.266
Symmetry
3 (mirrored)
Facets
40
Tiers
12
Crown
16
Pavilion
18

by Arya Akhavan (December 2012)

This design came about from my desire to inscribe triangles inside each other, rotating each consecutive one by between 15 and 45 degrees. I couldn't quite get enough triangles, though. This design somehow works in materials from fluorite (holy crap!) to rutile (RI = 1.43 - 2.62) with no changes. Wow. (I prefer it in zircon.) Suggested size = 5-12 mm

Wireframe

Vincalis the Agitator 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
164880
Set stone size.
G290.00°
963264
Meet P1, G1
P370.12°
164880
Set girdle level.
P470.12°
963264
Level girdle.
P150.76°
151747497981
Cut to centerpoint.
P249.27°
141846507882
Meet at culet.

Crown

#AngleFacetsNotes
C149.33°
164880
Set girdle width.
C235.33°
963264
Level girdle.
C433.56°
185082
Meet G1, G2, C1, C2, C3
C323.41°
245688
Meet G1, G2, C1, C2
C58.59°
306294
Meet C1, C2, C3, C4
T0.00°
24
Meet C3, C4, C5