Open21.234 OTTO
Invernizzi, Ottorino; Gemmarum Lapidator, Italy, 2004; L/W=1.000 H/W=0.730 Vol/W³=0.285 96 index 105+8 facets

Open21.235 OCTO-Varius 13
Larson, Vernon E "Larry"; Facets, Dec 1999, p 3; L/W=1.000 H/W=0.605 Vol/W³=0.217 96 index 49+8 facets

Open21.236 OCTO-Varius 18
Larson, Vernon E "Larry"; A Larrion Gem, Feb 1999; L/W=1.000 H/W=0.590 Vol/W³=0.224 96 index 69+8 facets

Open21.237 OCTO-Varius 99
Larson, Vernon E "Larry"; A Larrion Gem, Aug. 2000; L/W=1.000 H/W=0.677 Vol/W³=0.260 96 index 57+8 facets

Open21.238 OCTO-Varius 9
Larson, Vernon E "Larry"; A Larrion Gem, Aug. 2000; L/W=1.000 H/W=0.628 Vol/W³=0.226 96 index 45+8 facets

Open21.239 OCTO-Varius 65
Larson, Vernon E "Larry"; A Larrion Gem, Apr 2000; L/W=1.000 H/W=0.628 Vol/W³=0.238 96 index 57+8 facets

Open21.240 OTCO-Varius 81
Larson, Vernon E "Larry"; A Larrion Gem, March 2000; L/W=1.000 H/W=0.625 Vol/W³=0.228 96 index 73+8 facets

Open21.241 Four Star Cut
Strickland, Robert; Unpublished, 2013; L/W=1.000 H/W=0.649 Vol/W³=0.191 96 index 76+8 facets

21.242 EZ 81
Hoeschen, J A; Facets, Aug 2013 p11; L/W=1.000 H/W=0.642 Vol/W³=0.228 96 index 49+8 facets

21.243 Drunken 8 Steps
Richards, Steve; Facets, Aug 2011; Facets, Oct 2013, p7; L/W=1.000 H/W=0.684 Vol/W³=0.246 72 index 73+8 facets

21.244 Octopus
Olsen, Don; Facets, Nov 2012 p15; L/W=1.000 H/W=0.770 Vol/W³=0.365 96 index 45+8 facets designed in 2008, calculations by J Bartlemay

Open21.245 Oct-Fest No. 2
Perkins, Jim; Personal communication, Copyright Oct 2004; L/W=1.000 H/W=0.635 Vol/W³=0.243 96 index 57+8 facets

Open21.246 Oct-Fest
Perkins, Jim; Personal communication, Copyright Oct 2004; L/W=1.000 H/W=0.669 Vol/W³=0.243 96 index 64+8 facets

Open21.247 Diamond-Back Octagon
Perkins, Jim; Personal communication, Copyright May 28, 2005; L/W=1.000 H/W=0.581 Vol/W³=0.216 96 index 81+8 facets

Open21.248 Merry Go Round
Perkins, Jim; Personal communication, Copyright May 28, 2003; L/W=1.000 H/W=0.682 Vol/W³=0.244 96 index 105+16 facets Computed average face up brilliance ISO=90.1% COS=76.2% Delta= 13.9% Dispersion= 6.8% Scintillation=46.5%.

21.249 Two Square
Mays, Bob; Facets, Nov. 2013 p10; L/W=1.000 H/W=0.632 Vol/W³=0.229 96 index 57+8 facets

Open21.250 Grappler Octagon
Perkins, Jim; Personal communication, Copyright June 2001; L/W=1.000 H/W=0.556 Vol/W³=0.173 96 index 53+8 facets

Open21.251 Grappler 2 Octagon
Perkins, Jim; Personal communication, Copyright June 2001; L/W=1.000 H/W=0.556 Vol/W³=0.173 96 index 53+8 facets

Open21.252 Grappler 3 Octagon
Perkins, Jim; Personal communication, June 20, 2001; L/W=1.000 H/W=0.579 Vol/W³=0.185 96 index 53+8 facets

Open21.256 KIM'S NEW YEARS STAR (REVISED)
Perkins, Jim; Personal communication, Copyright Dec 2009; L/W=1.000 H/W=0.663 Vol/W³=0.253 96 index 57+8 facets