PythagoraSwitch

by Arya Akhavan and Jeffrey Hapeman (November 2013)

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L/W: 100%
Design RI: 1.54
H/W: 61%
Gear: 96
V/W³: 0.188
Symmetry: 3 (mirrored)
Facets: 67
Tiers: 14
Crown: 31
Pavilion: 36

This is a modification of Jeff Hapeman's "Pythagorean Pinwheel" design, with a few minor changes to the spacing of the fan, and a much shallower brilliant pavilion. It's still very interesting, but better for shallow rough. Works in materials from quartz to CZ (RI = 1.52 - 2.16) with no changes, but I prefer blue zircon. Suggested size = 10-18 mm

Wireframe

Pavilion

#	Angle	Facets	Notes
G1	90.00°	164880	Set stone size.
G2	90.00°	131945517783	Level girdle.
G3	90.00°	102242547486	Level girdle.
P1	45.02°	164880	Cut to centerpoint.
P2	44.35°	131945517783	Meet at culet.
P3	43.00°	102242547486	Meet at culet.
P4	43.00°	112143537585	Meet P2, P3, G2, G3

Crown

#	Angle	Facets	Notes
C1	49.71°	164880	Set girdle width.
C2	46.72°	131945517783	Level girdle.
C3	40.57°	102242547486	Level girdle.
C4	25.00°	42836606892	Meet G3, C3; C1, C2, C3
C5	23.29°	23034626694	Meet G3, C3, C4
C6	22.77°	963264	Meet G3, C3, C4, C5
T	0.00°	24	Meet C1, C2, C3, C4