Contort: 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 "Contort".


Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)

Contort Jeff Graham Facet Design

Contort Jeff Graham Facet Design

Contort (SUN42.JRG)
By Jeff R. Graham
Copyright 2006
81.8% Light Return
Angles for R.I. = 1.54
27 facets + 6 facets on girdle = 33
2-fold, mirror-image symmetry
96 index
L/W = 2.012 T/W = 0.576 T/L = 0.287 P/W = 0.456
C/W = 0.242 H/W = (P+C)/W+0.02 = 0.718 P/H = 0.635 C/H = 0.337 Vol./W^3 = 0.566



Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. Note: Cut the L/W and then just cut the P3(G) until they point. This works well in colored material and watermelon. The points can be fragile so care must be taken.

Contort Jeff Graham Facet Design

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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