Step’in Boxes: Faceting Design Diagram
Detailed information and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Step'in Boxes"
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Step'in Boxes (MIR84.JRG)
By Jeff R. Graham
86.6% Light Return
Angles for R.I. = 1.62
33 facets + 8 facets on girdle = 41
4-fold, mirror-image symmetry
L/W = 1.000 T/W = 0.257 T/L = 0.257 P/W = 0.438
C/W = 0.229 H/W = (P+C)/W+0.02 = 0.687 P/H = 0.637 C/H = 0.334 Vol./W^3 = 0.278
Addition # 10 - Cut in refractive indexes 1.62 to 1.76 with no changes. This is a good Garnet cut and also works well in about any light to medium saturated stone. Note: P3 floats and can vary to fit rough. I usually cut them to look like the diagram.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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