09.130 Square Cushion Reverse CrownWilliams, Evan;Australian Facet Designs (1994) 2-12;L/W=1.000H/W=0.614Vol/W^3=0.22045+12 FacetsGear: 96Remarks: RI=1.74 12 24 36 48 60 72 84 <96> W W U U L L T T C C P P PC 09.130 Square Cushion Reverse Crown Williams, Evan: Australian Facet Designs (1994) V2p12 Angles for R.I. = 1.740 45 facets + 12 girdles 4-fold, mirror-image symmetry; 96 index L/W = 1.000 T/W = 0.599 U/W = 0.599 P/W = 0.437 C/W = 0.165 Vol/W³ = 0.220 pc09130.asc 09.129 Square Cushion Brilliant09.131 Square Cushion