Fallen Star

by Arya Akhavan (September 2012)
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Gemology Projectopen
L/W
105%
Design RI
1.54
H/W
67%
Gear
80
V/W³
0.203
Symmetry
10 (mirrored)
Facets
66
Tiers
7
Crown
46
Pavilion
20

Well, I don't actually own an 80-index, so I can't cut this myself. I was just messing around, trying to see if I could create a sun shape inside a pentagon. It seems to have gone well, and has great light return and tilt brilliance. Cut in materials from feldspar to CZ (RI = 1.52 - 2.16) with no changes. Suggested size = 8-10 mm

Wireframe

Fallen Star 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
 824405672
Set stone size.
P145.07°
 824405672
Cut to centrepoint.
P241.27°
 6102226384254587074
Meet P1, G1

Crown

#AngleFacetsNotes
C158.33°
 824405672
Set girdle width.
C226.34°
 2 6101418222630343842465054586266707478
Meet G1, C1
C325.89°
 1 7 91517232531333941474955576365717379
Meet C1, C2
T0.00°
20
Meet C2, C3