Checker Star: Faceting Design Diagram

An informational guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Checker Star".


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

Checker Star (TLINE15.JRG)
By Jeff R. Graham
Copyright 1994
81.3% Light Return
Angles for R.I. = 1.62
49 facets + 12 facets on girdle = 61
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.538 T/L = 0.538
P/W = 0.431 C/W = 0.178
H/W = (P+C)/W+0.02 = 0.628
P/H = 0.685 C/H = 0.283
Vol./W^3 = 0.266

Addition # 1 - This design is a good one to cut if you would like a little challenge, (just a little). It is pretty straight forward to cut and makes a nice stone in any light to medium material, 1/2-6cts. Cut in refractive indexes 1.62 to 1.93 (87.3%) 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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