PC 09.025A

Checker Square Barion

Long, R.H. & Steele, N.W.; Facet Design v6 (1987) pC28

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L/W: 100%
Design RI: 1.54
H/W: 87%
Gear: 64
V/W³: 0.338
Symmetry: 4 (mirrored)
Facets: 84
Tiers: 12
Crown: 16
Pavilion: 68

Use preform PF09025A to establish equal girdle segments.

Wireframe

Checker Square Barion 3D view

Top view

Side view

Front view

Back view

Pavilion

#	Angle	Facets	Notes
G1	90.00°	313192935455161	From preform PF09025A.
G2	90.00°	115173133474963	From preform PF09025A
P1	60.00°	313192935455161	Meet P1-P1-G1-G1
P2	60.00°	115173133474963	Meet P1-P2-G1-G2
P3	44.40°	610222638425458	Cut to TCP
P4	44.40°	214183034465062	Meet P1-P2-P3
P5	43.00°	64163248	Meet P4-P3-P3-P4

Crown

#	Angle	Facets	Notes
C1	66.50°	313192935455161	Level girdle. Meet C1-G1-G2
C2	66.10°	115173133474963	Fix girdle thickness
C3	37.00°	8244056	Meet C2-C2-G1-G1
C4	30.00°	412202836445260	Meet C1-C2-C3
C5	17.40°	8244056	Meet C4-C3-C4