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


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

Double Apple (MIR9.JRG)
By Jeff R. Graham
Copyright 2004
93.6% Light Return
Angles for R.I. = 1.54
44 facets + 8 facets on girdle = 52
4-fold, mirror-image symmetry
96 index
L/W = 1.000 P/W = 0.450 C/W = 0.181
H/W = (P+C)/W+0.02 = 0.652
P/H = 0.691 C/H = 0.278
Vol./W^3 = 0.246

Addition # 9 – Note: The P3(G)girdle is variable, cut them to look like the diagram, or to fit your rough. Cut in refractive indexes 1.54 to 2.14 with no changes. This is quite pretty and works great in Garnet, I prefer medium saturation. I like this in medium saturated Amethyst and Citrine. Try some sets, they will sell fast. On a large stone a table can be cut to meet C6.


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.