Sokoine Bell

by Arya Akhavan (July 2014)
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Gemology Projectopen
L/W
123%
Design RI
1.65
H/W
67%
Gear
96
V/W³
0.277
Symmetry
1 (mirrored)
Facets
38
Tiers
16
Crown
19
Pavilion
19

This was also written for a friend, who had a uniquely shaped bicolor tanzanite. The weird keel is designed to help keep those two colors fully separate. To cut this design truly to meetpoint, when cutting G1 and P3, only cut 42-54. Then, after cutting G2, cut G1(90-06) to meet P4, P5, G2, then cut P3(90-06) to level girdle. Works in materials from peridot to CZ (RI = 1.65 - 2.16) with no changes.

Wireframe

Sokoine Bell 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
 6425490
Set stone width.
G290.00°
1878
Level girdle.
P365.60°
 6425490
Level girdle.
P464.97°
1878
Meet P1, P2, P3
P143.79°
 1474995
Cut to centerpoint.
P543.29°
48
Meet P1, G1, P3
P242.14°
 294
Meet at culet.

Crown

#AngleFacetsNotes
C140.09°
 6425490
Set girdle width.
C240.09°
1878
Level girdle.
C334.82°
 591
Meet G1, C1.
C632.81°
4353
Meet G1, C1
C424.49°
1284
Meet G1, G2, C1, C2
C524.49°
3660
Meet G1, G2, C1, C2
C722.10°
1086
Meet C1, C3, C4
C821.18°
3957
Meet C1, C5, C6; C2, C4, C5
T0.00°
24
Meet C6, C8