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


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

Cross (QTZ50.JRG)
By Jeff R. Graham
Copyright 1996
70.6% Light Return
Angles for R.I. = 1.54
47 facets + 8 facets on girdle = 55
2-fold, mirror-image symmetry
96 index
L/W = 1.330 T/W = 0.544 T/L = 0.409
P/W = 0.511 C/W = 0.248
H/W = (P+C)/W+0.02 = 0.779
P/H = 0.656 C/H = 0.319
Vol./W^3 = 0.428

Addition # 1 – A preform is a must L/W 1.33. The cutting order on the pavilion can be changed. This design cuts fairly easy (with a preform). The P6 facets can be varied. This is a fairly deep design and will help darken light colors… 


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.