Longer and Steelier

by Arya Akhavan and Nick Fabri (inspired by Long & Steele)
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Gemology Projectopen
L/W
124%
Design RI
1.54
H/W
84%
Gear
96
V/W³
0.441
Symmetry
2 (mirrored)
Facets
51
Tiers
16
Crown
23
Pavilion
28

This design is a significant modification of Bob Long and Norm Steele's "PC 04.054 ECED END 1.40-7-2", with modifications for Nick to preserve some material on the test cut. The girdle outline is pushed out to make it "cushionier", with a bit more of an interesting crown, and a significantly modified pavilion. Works in materials from quartz to CZ (RI = 1.54 - 2.16) with no changes, but blue topaz should look awesome.

Wireframe

Longer and Steelier 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
2472
Set stone length.
G290.00°
12366084
Level girdle.
G390.00°
 2465094
Meet P1, P3, G2
P565.76°
2472
Level girdle.
P465.76°
 2465094
Level girdle.
P344.91°
 8405688
Meet at culet.
P144.01°
12366084
Cut to centerpoint.
P242.00°
16326480
Meet at culet.

Crown

#AngleFacetsNotes
C257.04°
12366084
Level girdle.
C155.17°
 2465094
Set girdle width.
C355.17°
2472
Level girdle.
C448.04°
 3455193
Meet G2, G3, C1, C2
C548.04°
22267074
Meet G1, G2, C2, C3
C731.20°
2472
Meet C2, C4, C5, C3, C5
C625.00°
9648
Meet C1, C4; C2, C4, C5
T0.00°
24
Meet C2, C4, C5, C6, C7