Double Cross Square: Faceting Design Diagram

Tips and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Double Cross Square".


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Double Cross Square (QTZ7.JRG)
By Jeff R. Graham
Copyright 1993
75% Light Return
Angles for R.I. = 1.54
73 facets + 8 facets on girdle = 81
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.594 T/L = 0.594
P/W = 0.529 C/W = 0.212
H/W = (P+C)/W+0.02 = 0.761
P/H = 0.695 C/H = 0.278
Vol./W^3 = 0.363

Gram Book 1 - This design is not as hard to cut as it might look. It is different to cut and it's deep to help darken light to medium material, 1-8cts. As on all of my designs, if you see a better way to cut it feel free. Cut in refractive index 1.54 to 2.14 (85.1%) 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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