Circus Swirl: 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 "Quartz".
Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)
Circus Swirl (DOME13.JRG)
By Jeff R. Graham
Copyright 2007
80.7% Light Return
Angles for R.I. = 1.54
57 facets + 8 facets on girdle = 65
8-fold symmetry
96 index
L/W = 1.000 T/W = 0.211 T/L = 0.211 P/W = 0.435
C/W = 0.369 H/W = (P+C)/W+0.02 = 0.824 P/H = 0.528 C/H = 0.448 Vol./W^3 = 0.313
PAVILION
CROWN
Addition # 13 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is designed for Amethyst and Citrine and works well in light to medium saturated material. This is not hard to cut.
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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