Faceting Design Diagram: Sun Goddess – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


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

Sun Goddess (MIR12.JRG)
By Jeff R. Graham
Copyright 2004
93.3% Light Return
Angles for R.I. = 1.54
49 facets + 8 facets on girdle = 57
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.198 T/L = 0.198
P/W = 0.435 C/W = 0.229
H/W = (P+C)/W+0.02 = 0.684
P/H = 0.636 C/H = 0.335
Vol./W^3 = 0.224

Addition # 9 – Hint: It is helpful to leave the C3 a little short, then cut in the C4 tier and rough the table. Touch up the C3 tier as needed. This cuts fast and is simple, it is ideal for medium saturated material. Cut in refractive indexes 1.54 to 1.76 with no changes.


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.