Sylphid's Storm

Suite: Elemental Spirits
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Gemology Projectopen
L/W
131%
Design RI
1.54
H/W
105%
Gear
96
V/W³
0.515
Symmetry
2
Facets
65
Tiers
29
Crown
29
Pavilion
24

by Arya Akhavan (September 2012)

The crown layout was inspired by the weather symbol for hurricanes, since a sylphid is a wind spirit. The girdle outline was entirely trial-and-error, with lots of reflections and random scaling. Written for tan scapolite, but works in any material from feldspar to CZ (RI = 1.52 - 2.16) with no changes. Also works in fluorite! Suggested oblique length = 12-18 mm

Wireframe

Sylphid's Storm 3D view
Top viewSide viewFront viewBack view

Pavilion

#AngleFacetsNotes
G190.00°
3482
G290.00°
9648
G390.00°
4492
G490.00°
3886
G590.00°
2371
G690.00°
2977
P380.45°
9648
Meet G1, G6, P1, P2 (level girdle)
P473.42°
4492
Meet G1, G2, P3; P1, P3 (level girdle)
P570.85°
3886
Meet G2, G3, P4; P1, P4 (level girdle)
P668.28°
3482
Meet G3, G4, P5; P1, P5 (level girdle)
P763.79°
2977
Meet G4, G5, P6; P1, P6 (level girdle)
P859.16°
2371
Meet G5, G6, P7; P1, P2, P7 (level girdle)
P243.47°
1765
Meet culet.
P143.33°
 1112333394959718187
Cut to centrepoint (remove all CAM facets, including X1)

Crown

#AngleFacetsNotes
C343.15°
3886
Level girdle.
C142.72°
9648
Set girdle width.
C242.72°
4492
Level girdle.
C440.00°
3482
Level girdle.
C537.86°
2977
Level girdle.
C635.68°
2371
Level girdle.
C1035.68°
3785
Meet C3, C4, C9
C1135.12°
4492
Meet C2, C3, C10
C933.67°
3482
Meet C4, C5, C8
C1232.42°
4694
Meet C1, C2, C11; C9, C10, C11
C827.09°
2775
Meet C5, C6, C7
C725.56°
2169
Meet G1, G6, C1, C6
C1318.43°
 553
Meet C1, C7, C12
C1417.41°
1563
Meet C1, C7, C12, C13
T0.00°
24
Meet C9, C10, C11, C12