04.153 No Name; Covill, Charles W; American Gemcutter, Jun 1995, p29; L/W=1.500; H/W=0.742; Vol/W³=0.541; 96 index; 67+8 facets; 1995 US Gemcutting Competition Evaluation stone1995 US Gemcutting Competition Evaluation stone
04.153A August 23 Octagon; Covill, Charles W; Angles, Apr 1995, p6; L/W=1.339; H/W=0.806; Vol/W³=0.439; 96 index; 55+8 facets;
04.154 August 23; Covill, Charles W; Covill Original Designs (1994) 6-3; L/W=1.339; H/W=0.875; Vol/W³=0.495; 96 index; 53+8 facets; RI=1.61
04.155 February 25; Covill, Charles W; Covill Original Designs (1994) 6-11; L/W=1.250; H/W=0.796; Vol/W³=0.433; 96 index; 69+8 facets; RI=1.76
04.156 Octagon Gem; Covill, Charles W; Covill Original Designs (1994) 6-13; L/W=1.333; H/W=0.705; Vol/W³=0.394; 96 index; 61+8 facets; RI=1.61
04.157 1.22 Octagon; Covill, Charles W; Covill Original Designs (1994) 6-14; L/W=1.220; H/W=0.808; Vol/W³=0.437; 96 index; 59+8 facets; RI=1.61
04.158 1.24 Octagon; Covill, Charles W; Covill Original Designs (1994) 6-15; L/W=1.240; H/W=0.801; Vol/W³=0.461; 96 index; 61+8 facets; RI=1.61
04.159 Octagon 1.25; Covill, Charles W; Covill Original Designs (1994) v6p16; L/W=1.250; H/W=0.861; Vol/W³=0.496; 96 index; 59+8 facets;
04.161 Spider Gem; Covill, Charles W; Covill Original Designs (1994) 6-19; L/W=1.250; H/W=0.829; Vol/W³=0.455; 96 index; 41+8 facets; RI=1.71