Igloo

by Arya Akhavan (December 2012)
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Gemology Projectopen
L/W
102%
Design RI
1.58
H/W
69%
Gear
96
V/W³
0.231
Symmetry
3 (mirrored)
Facets
100
Tiers
16
Crown
40
Pavilion
60

After writing a few trillions, I looked back at Marco Voltolini's "Tristano" and realized that I liked the rounded corner look, so I wrote myself a design with rounded corners. Hopefully this design will darken lighter rough. Works in materials from feldspar to CZ (RI = 1.52 - 2.16) with no changes. I prefer this in aquamarine. Suggested size = 6-12 mm

Wireframe

Igloo 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
151747497981
Set stone size.
G290.00°
122044527684
Meet P1, G1
G390.00°
 62638587090
Meet P1, G2
P469.52°
151747497981
Level girdle.
P368.64°
122044527684
Level girdle.
P265.88°
 62638587090
Meet P1, G3 (level girdle)
P143.16°
 2 614182630343846505862667078829094
Cut to centerpoint.
P542.16°
 42836606892
Meet P1, P2, P3

Crown

#AngleFacetsNotes
C339.18°
 62638587090
Level girdle.
C233.80°
122044527684
Level girdle.
C132.95°
151747497981
Set girdle width.
C431.89°
164880
Meet G1, C1
C531.26°
131945517783
Meet G1, G2, C1, C2
C624.39°
141846507882
Meet C1, C4, C5
C710.25°
 32935616793
Meet C2, C3, C5
T0.00°
24
Meet C6, C7