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
