Nadir: Faceting Design Diagram
Successful tips, details, and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Nadir".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Nadir (MIR82.JRG)
By Jeff R. Graham
Copyright 2005
87.1% Light Return
Angles for R.I. = 1.62
36 facets + 12 facets on girdle = 48
4-fold, mirror-image symmetry
96 index
L/W = 1.000 P/W = 0.423 C/W = 0.222
H/W = (P+C)/W+0.02 = 0.665 P/H = 0.636 C/H = 0.333
Vol./W^3 = 0.245
PAVILION
CROWN
Addition # 10 - This is quick and easy. The cross on the bottom can be varied depending on how deep you cut the tier. This is not hard to cut and is a bit different. Light to medium saturation is best. Cut in refractive indexes 1.62 to 2.14 with no changes.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
