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


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

Bzzz (QTZ65.JRG)
By Jeff R. Graham
Copyright 1998
70% Light Return
Angles for R.I. = 1.54
101 facets + 8 facets on girdle = 109
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.482 T/L = 0.482
P/W = 0.481 C/W = 0.175
H/W = (P+C)/W+0.02 = 0.676
P/H = 0.712 C/H = 0.259
Vol./W^3 = 0.251

Addition # 2 – This design can be hard to cut, you may have to cut the steps a couple of times to get them right. The spacing is critical, however, the rest of the cut is not very hard, 2-24cts. Cut in refractive indexes 1.54 to 2.14 (80.1%) 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.