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


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

Swiss Square (CHECK30.JRG)
By Jeff R. Graham
Copyright 2001
81.2% Light Return
Angles for R.I. = 1.54
45 facets + 8 facets on girdle = 53
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.392 T/L = 0.392
P/W = 0.529 C/W = 0.164
H/W = (P+C)/W+0.02 = 0.713
P/H = 0.742 C/H = 0.230
Vol./W^3 = 0.330

Addition # 6 – This can be cut in refractive indexes 1.54 to 1.93 (88.6%) with no changes. I like this in Zircon… Notice it is quite deep, it works well in light colored material.


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.