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


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

Cool (CHECK42.JRG)
By Jeff R. Graham
Copyright 2001
83.4% Light Return
Angles for R.I. = 1.54
45 facets + 8 facets on girdle = 53
2-fold, mirror-image symmetry
120 index
L/W = 1.271 T/W = 0.379 T/L = 0.298
P/W = 0.450 C/W = 0.223
H/W = (P+C)/W+0.02 = 0.692
P/H = 0.649 C/H = 0.322
Vol./W^3 = 0.471

Addition # 6 – This one is really nice, and fairly fast to cut once you get used to the 120 index gear. I like it in about any material. Cut in refractive indexes 1.54 t0 1.93 (85.1%)with no changes. The cutting order on the crown can be a different order, leave yourself some extra room when cutting the crown, a re-cut to line things up is normal.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

About the author
Jeff R. Graham
The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.
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