PC 01.666

PATRIOT BRILLIANT

Designed by Jim Perkins Copyright February 14, 2003
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DataVueopen
L/W
100%
Design RI
1.76
H/W
60%
Gear
96
V/W³
0.210
Symmetry
8 (mirrored)
Facets
89
Tiers
9
Crown
16
Pavilion
73

Average face up brilliance ISO=91.5% COS= 83.6%

Round brilliant variations are hard to beat for optical performance. This one has a lot of the feeling of my patriot oval design thus the name. I cut this in an 8mm royal blue sapphire However it should work fine in garnets, spinel, topaz and CZ. Add 2-3 degrees to the pavilion angles for quartz.

Wireframe

PATRIOT BRILLIANT 3D view
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Pavilion

#AngleFacetsNotes
G190.00°
 6121824303642485460667278849096
Cut to size.
P140.79°
 6121824303642485460667278849096
P239.00°
 921334557698193
PCP,MP @ girdle.

Crown

#AngleFacetsNotes
C137.30°
 618304254667890
Level girdle to C1.
C234.51°
1224364860728496
Cut girdle width equal depth.
C332.46°
 3 91521273339455157636975818793
MP @ girdle.
C427.00°
 618304254667890
MP @ C1.
C518.00°
 618304254667890
MP @ C2.
T0.00°
96
Cut to ratio.