Port of Call: 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 "Port of Call".


Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)

Port of Call (MC57.JRG)Zircon cut by Tony Carson
By Jeff R. Graham
Copyright 2002
82.5% Light Return
Angles for R.I. = 1.62
73 facets + 18 facets on girdle = 91
3-fold, mirror-image symmetry
96 index
L/W = 1.048 T/W = 0.488 T/L = 0.465
P/W = 0.493 C/W = 0.211
H/W = (P+C)/W+0.02 = 0.725
P/H = 0.681 C/H = 0.292
Vol./W^3 = 0.246

Addition # 7 - This design is made to be deep for lighter colored materials and has great dispersion. Cut it refractive indexes 1.62 to 1.93 with no changes. I like this in white Zircon

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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