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


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

Honey (CHECK18.JRG) 2.76 carat Amethyst
By Jeff R. Graham
Copyright 2001
80.4% Light Return
Angles for R.I. = 1.54
43 facets + 6 facets on girdle = 49
6-fold, mirror-image symmetry
96 index
L/W = 1.155 T/W = 0.361 T/L = 0.313
P/W = 0.450 C/W = 0.197
H/W = (P+C)/W+0.02 = 0.667
P/H = 0.674 C/H = 0.296
Vol./W^3 = 0.274

Addition # 6 – This is a neat design and it cuts fast. I like it in about any material. This design can be cut in refractive indexes 1.54 to 1.93 (87.9%) with no changes. It is really a “Money Cut” and I like it for earrings…


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.