Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Trapper Check".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Trapper Check (CHECK7.JRG)
By Jeff R. Graham
Copyright 2001
81.7% Light Return
Angles for R.I. = 1.62
27 facets + 8 facets on girdle = 35
2-fold symmetry
96 index
L/W = 1.160 T/W = 0.849 T/L = 0.731
P/W = 0.466 C/W = 0.179
H/W = (P+C)/W+0.02 = 0.665
P/H = 0.701 C/H = 0.269
Vol./W^3 = 0.378
Addition # 6 - This is an odd one… It can be adapted to almost any L/W and I originally designed it for a bi-color. This is not a standard shape for setting, but in most cases should not be a problem.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Trapper Check (CHECK7.JRG)
By Jeff R. Graham
Copyright 2001
81.7% Light Return
Angles for R.I. = 1.62
27 facets + 8 facets on girdle = 35
2-fold symmetry
96 index
L/W = 1.160 T/W = 0.849 T/L = 0.731
P/W = 0.466 C/W = 0.179
H/W = (P+C)/W+0.02 = 0.665
P/H = 0.701 C/H = 0.269
Vol./W^3 = 0.378
Addition # 6 - This is an odd one… It can be adapted to almost any L/W and I originally designed it for a bi-color. This is not a standard shape for setting, but in most cases should not be a problem.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
