Glitter Eight: Faceting Design Diagram
Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Glitter Eight".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Glitter Eight (MC88.JRG)
By Jeff R. Graham
Copyright 2003
86.6% Light Return
Angles for R.I. = 1.62
129 facets + 8 facets on girdle = 137
16-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.406 T/L = 0.406 P/W = 0.435
C/W = 0.196 H/W = (P+C)/W+0.02 = 0.651 P/H = 0.669 C/H = 0.301 Vol./W^3 = 0.219
PAVILION
CROWN
Addition # 12 - This is easy and straight forward to cut, although it should be cut in a large stone because it has a lot of facets. I like it in light to medium colored material. Cut in refractive index 1.62 to 2.14 (87.3%)with no changes.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
