Tessellation 17 (F)

"No BATT, No AlOx, Jamb-Peg Only, Final Destination"
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Gemology Projectopen
L/W
100%
Design RI
1.54
H/W
65%
Gear
96
V/W³
0.233
Symmetry
4
Facets
57
Tiers
15
Crown
25
Pavilion
32

Suite: Tessellation Party! by Arya Akhavan (October 2012)

This particular variant on F didn't quite work out - you can't get perfect squares on any available indices. The reflection pattern on this one is interesting and unique, and it's the first time I've used facets that meet only at the culet. Works in materials from quartz to rutile (RI = 1.52 = 2.62) with no changes, but I prefer chrysoberyl. Suggested size = 6-10 mm

Wireframe

Tessellation 17 (F) 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
96244872
Set stone size.
G290.00°
 9335781
Level girdle.
G390.00°
15396387
Level girdle.
P144.78°
96244872
Cut to centerpoint.
P242.80°
 9335781
Meet at culet.
P342.57°
15396387
Meet at culet.
P441.57°
 3275175
Meet P1, P2, G1, G2
P541.00°
96244872
Meet at culet.

Crown

#AngleFacetsNotes
C152.87°
96244872
Set girdle width.
C327.12°
 9335781
Level girdle.
C225.40°
15396387
Level girdle.
C422.94°
17416589
Meet G1, G2, C1, C2
C518.92°
 8325680
Meet C1, C3, C4
C616.57°
11355983
Meet C2, C3, C4, C5
T0.00°
24
Meet C4, C5, C6