Faceting Design Diagram: Square Ziggie – Reflector – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


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

Square Ziggie – Reflector (MC23.JRG) Tourmaline cut by Tony Carson
By Jeff R. Graham
Copyright 1999
86.4% Light Return
Angles for R.I. = 1.54
14 facets + 4 facets on girdle = 18
2-fold, mirror-image symmetry
96 index
L/W = 1.000 P/W = 0.466 C/W = 0.144
H/W = (P+C)/W+0.02 = 0.630
P/H = 0.740 C/H = 0.228
Vol./W^3 = 0.336

Addition # 4 – This cuts east and has a neat flash. I like it for earring stones in medium color material 1/2-6cts. Works well in Topaz and Tourmaline.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.