Shadowstar

by Arya Akhavan (June 2013)
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Gemology Projectopen
L/W
105%
Design RI
1.61
H/W
62%
Gear
80
V/W³
0.179
Symmetry
5 (mirrored)
Facets
46
Tiers
9
Crown
26
Pavilion
10

I was working on so called "ribbon designs", where a frosted thin line on the crown makes a picture, and I came up with this. Screw the frosting, this reflector design turns out great, even in ridiculously low RI materials! Works in materials from fluorite to CZ (RI = 1.43 - 2.16) with no changes, but I prefer it in champagne topaz. Suggested size = 6-12 mm

Wireframe

Shadowstar 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
 824405672
Set stone size.
G290.00°
8016324864
Level girdle.
P145.80°
 824405672
Cut to centerpoint.
P241.21°
8016324864
Meet at culet.

Crown

#AngleFacetsNotes
C124.21°
 824405672
Set girdle width.
C221.21°
8016324864
Level girdle.
C320.49°
 6102226384254587074
Meet G1, G2, C1, C2
C415.53°
8016324864
Meet C2, C3
T0.00°
20
Meet C3, C4