Cool: Faceting Design Diagram

Detailed information and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Cool".


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

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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