01.004 Double Mirror Brilliant

  • Leiper, Hugh;Lapidary Journal, Jun 1958, p322;
  • L/W=1.000
  • H/W=0.762
  • Vol/W^3=0.287
  • 81+R Facets
  • Gear: 64
4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 <64> W W U U L L T T C C P P PC 01.004 Double Mirror Brilliant Leiper, Hugh; Lapidary J, Jun 58, p322 Angles for R.I. = 1.540 81 facets + 64 girdles 8-fold, mirror-image symmetry; 64 index L/W = 1.000 T/W = 0.589 U/W = 0.589 P/W = 0.560 C/W = 0.198 Vol/W³ = 0.287 pc01004.asc