PC 08.130

OMNI Checkerboard Cushion Rectangle

by Robert W. Strickland 11/30/11

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L/W: 126%
Design RI: 1.54
H/W: 76%
Gear: 96
V/W³: 0.382
Symmetry: 2 (mirrored)
Facets: 92
Tiers: 26
Crown: 18
Pavilion: 74

Strickland, Robert; USFG Yahoo website, Nov 2011;

Steps 1-G5 comprise an OMNI preform. False girdle line will not be level. The crown can be adapted to other L/W without changing any angles or indices. For longer stones, the crown checkers will become more rectangular. For shorter stones, the checkers become more square.

Wireframe

OMNI Checkerboard Cushion Rectangle 3D view

Pavilion

#	Angle	Facets
G1	90.00°	4445292
G2	90.00°	20286876
G3	90.00°	2465094
G4	90.00°	4896
G5	90.00°	22267074
P1	65.76°	4896
P2	65.35°	2465094
P3	64.14°	4445292
P4	60.27°	22267074
P5	59.78°	20286876
P6	39.21°	7415589
P7	39.09°	4896
P8	39.00°	11375985
P9	38.46°	15336381
P10	37.93°	21276975

Crown

#	Angle	Facets
C1	52.66°	4445292
C2	52.66°	20286876
C3	51.94°	2465094
C4	51.94°	22267074
C5	51.70°	4896
C6	25.63°	12366084
C7	20.17°	6425490
C8	20.17°	18306678
C9	18.74°	4896
C10	11.24°	12366084
C11	8.00°	4896