Faceting Design Diagram: Point Of Cross – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


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

Point Of Cross (B11.JRG)
By Jeff R. Graham
Copyright 1999
85.8% Light Return
Angles for R.I. = 1.54
81 facets + 8 facets on girdle = 89
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.505 T/L = 0.505
P/W = 0.503 C/W = 0.166
H/W = (P+C)/W+0.02 = 0.689
P/H = 0.730 C/H = 0.241
Vol./W^3 = 0.275

Addition # 5 – This is pretty easy to cut and works well in most medium to light materials. The table can be roughed in before cutting C5 to help with C5 placement. I especially like this in orange citrine. This can be cut in R.I. 1.54 to 1.76 (90.3%) 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.