Not: Faceting Design Diagram
Successful tips, details, and a guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Not".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
By Jeff R. Graham
92.2% Light Return
Angles for R.I. = 1.62
49 facets + 8 facets on girdle = 57
8-fold, mirror-image symmetry
L/W = 1.000 T/W = 0.396 T/L = 0.396 P/W = 0.426
C/W = 0.204 H/W = (P+C)/W+0.02 = 0.650 P/H = 0.655 C/H = 0.314 Vol./W^3 = 0.230
Addition # 10 - This is easy to cut, but needs to be in a large size,10mm and up. The amount of Mirage reflections in this design are amazing. I designed this to be a fast way to cut large stone. This is "Not" what you think, and it can be a little harder to cut than may think. The P3 tier is a bit difficult depending on the stone size.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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