Viking’s Luck: 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 "Viking's Luck".


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

Viking's Luck (CHECK71.JRG)
By Jeff R. Graham
Copyright 2003
82.7% Light Return
Angles for R.I. = 1.62
47 facets + 8 facets on girdle = 55
2-fold, mirror-image symmetry
96 index
L/W = 1.602 T/W = 0.515 T/L = 0.322
P/W = 0.436 C/W = 0.262
H/W = (P+C)/W+0.02 = 0.717
P/H = 0.607 C/H = 0.365
Vol./W^3 = 0.516

Addition # 8 - This is not very easy to cut, but after you have done it once, it's not hard the next time. The L/W is not critical but should be close. Cut In refractive indexes 1.62 tp 2.14 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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