Novice Cushion Triangle by Robert Strickland

Novice Cushion Triangle - designed by Robert Strickland 9-23-98 rstrick@compuserve.com
Angles for R.I. = 1.54 43 facets
3-fold, mirror image symmetry 96 index
L/W = 1.009 T/W = 0.604 T/L = 0.598 P/W = 0.403 C/W = 0.122 H/W = (P+C)/W+0.02 = 0.545 P/H = 0.739 C/H = 0.224
Vol./W^3 = 0.161 Brightness at 0 degrees tilt for quartz
COS = 69.8 ISO = 89.4

Pavilion
1 45.00 02-30-34-62-66-94 Meet at temporary center point
2 44.00 96-32-64 Size stone. Meet at final center point
3 42.50 06-26-38-58-70-90 Meet 1-1-2-2
G1 90.00 02-30-34-62-66-94 Meet 1 and 2
G2 90.00 06-26-38-58-70-90 Level girdle
Crown
A 40.00 02-30-34-62-66-94 Leave some girdle
B 33.00 06-26-38-58-70-90 Level girdle
C 37.50 96-32-64 Meet girdle
T 0.00 Table Table
Suitable for a beginner's third or forth stone. Good optical performance despite the small number of facets.


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