Play Ball: Faceting Design Diagram


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

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

Play Ball (CHECK77.JRG)
By Jeff R. Graham
Copyright 2003
85.8% Light Return
Angles for R.I. = 1.62
57 facets + 8 facets on girdle = 65
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.350 T/L = 0.350
P/W = 0.431 C/W = 0.167
H/W = (P+C)/W+0.02 = 0.618
P/H = 0.698 C/H = 0.270
Vol./W^3 = 0.217

Addition # 8 - Cut this in refractive indexes 1.62 to 2.14 (90.2%) with no changes. This is pretty quick to cut and works well in about any material. I like it in medium colors.


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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