13.159 Delta (Increment of a Variable)

  • Perkins, Jim;Personal communication, Copyright July 5, 2002;
  • L/W=1.073
  • H/W=0.580
  • Vol/W^3=0.153
  • 28+6 Facets
  • Gear: 96
8 16 24 32 40 48 56 64 72 80 88 <96> W W U U L L T T C C P P C1 C2 C3 T C1 P1 P2 P3 P1 P3 C1 C2 C1 C2 C3 T C1 P1 P2 P3 P1 P3 C1 C2 PC 13.159 DELTA (INCREMENT OF A VARIABLE) DESIGNED BY JIM PERKINS COPYRIGHT JULY 5, 2002 Average Faceup brilliance ISO=76.1% COS=57.5% @RI=1.63 Angles for R.I. = 1.630 28 facets + 6 girdles 3-fold, mirror-image symmetry; 96 index L/W = 1.073 T/W = 0.414 U/W = 0.358 P/W = 0.422 C/W = 0.133 Vol/W³ = 0.153 pc13159.asc
P149.98°14-18-46-50-78-82TCP
P290.00°14-18-46-50-78-82Level girdle, cut to size.
P348.00°15-17-47-49-79-81PCP, MP @ girdle.
C143.53°14-18-46-50-78-82Cut girdle width,level girdle.
C217.23°04-28-36-60-68-92MP @ girdle
C312.00°96-32-64MP @ C1 & C2
T0.00°TableMP @ C1,C2,& C3

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