Uneven Swirl: Faceting Design Diagram

Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Uneven Swirl".


Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)

Uneven Swirl (GNETP14.JRG) Chrysoberyl cut by Tony Carson
By Jeff R. Graham
Copyright 1993
80.4% Light Return
Angles for R.I. = 1.73
43 facets + 6 facets on girdle = 49
6-fold symmetry
96 index
L/W = 1.155 T/W = 0.516 T/L = 0.447
P/W = 0.416 C/W = 0.193
H/W = (P+C)/W+0.02 = 0.629
P/H = 0.662 C/H = 0.306
Vol./W^3 = 0.254

Addition # 3 - This design is a little unusual to cut because the P3, P4, facets are not all meet point. Cut them a evenly as you can, they do cut to center point. This design works well in medium to light material, 1-8cts. Cut in refractive indexes 1.73 to 2.14 (81.5%)with no changes.


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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