Funky Triangles

by Arya Akhavan (November 2012)
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Gemology Projectopen
L/W
107%
Design RI
1.54
H/W
68%
Gear
96
V/W³
0.238
Symmetry
3 (mirrored)
Facets
103
Tiers
15
Crown
49
Pavilion
54

After playing around with a rounded rectangle barion, I decided to try and achieve the same effect with a triangle. This pattern has great light return because the P3 facets are NOT mirror-symmetric. (Be careful!) I like this in orange chrysoberyl, but works in materials from feldspar to rutile (RI = 1.52 - 2.62) with no changes. Suggested size = 8-12 mm

Wireframe

Funky Triangles 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
 2 626303438586266709094
Set stone radius.
G290.00°
164880
Meet P1, G1
P265.79°
164880
Level girdle.
P143.03°
 2 610141822263034384246505458626670747882869094
Cut to centerpoint.
P341.30°
96 424283236566064688892
Meet P1, G1, G2, P2

Crown

#AngleFacetsNotes
C149.03°
164880
Set girdle width.
C441.98°
151747497981
Meet G1, G2, C1, C2
C735.85°
164880
Meet C1, C4; C2, C4, C5
C231.93°
 62638587090
Level girdle.
C530.24°
 52737596991
Meet G1, C2, C3
C329.92°
 23034626694
Level girdle.
C629.15°
 13133636595
Meet G2, C3
C821.07°
102242547486
Meet C2, C4, C5, C7; C3, C5, C6
C921.07°
131945517783
Meet C2, C4, C5, C7, C8
T0.00°
24
Meet C6, C8