Elizabeth’s Flash: Faceting Design Diagram

Successful tips and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Elizabeth's Flash".


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

Elizabeth's Flash (CHECK20.JRG) 19.89 carat Tourmaline
By Jeff R. Graham
Copyright 2001
89.5% Light Return
Angles for R.I. = 1.62
27 facets + 4 facets on girdle = 31
2-fold, mirror-image symmetry
96 index
L/W = 1.200 T/W = 0.320 T/L = 0.267
P/W = 0.466 C/W = 0.231
H/W = (P+C)/W+0.02 = 0.717
P/H = 0.650 C/H = 0.322
Vol./W^3 = 0.489

Addition # 6 - This is designed to be deep for high yield return… I originally had a tri-colored crystal-shaped piece of Tourmaline rough that I designed this for. It was such an unusual piece of rough and I did not want to waste any of it. This works well in about any color, I particularly like it in multi-colored Tourmaline. It will tend to darken a bit…

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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