Faceting Design Diagram: Six Gig – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Six Gig (MIR11.JRG)
By Jeff R. Graham
Copyright 2004
83.7% Light Return
Angles for R.I. = 1.54
30 facets + 6 facets on girdle = 36
6-fold symmetry
96 index
L/W = 1.155 P/W = 0.450 C/W = 0.242
H/W = (P+C)/W+0.02 = 0.713
P/H = 0.632 C/H = 0.340
Vol./W^3 = 0.238

Addition # 9 – This one is just fast and fun to cut. I have several other cuts similar to this, but the reflections on this one are quite nice. Any material, about any size. A table is a good idea on large stones. Cut in refractive indexes 1.54 to 1.93 no changes.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler