Rhomboid Split: Faceting Design Diagram
Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Rhomboid Split".
Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)
Rhomboid Split (SUN28.JRG)
By Jeff R. Graham
Copyright 2006
90.6% Light Return
Angles for R.I. = 1.54
13 facets + 4 facets on girdle = 17
2-fold symmetry
96 index
L/W = 3.000 T/W = 0.917 T/L = 0.306 P/W = 0.450
C/W = 0.175 H/W = (P+C)/W+0.02 = 0.645 P/H = 0.698 C/H = 0.271 Vol./W^3 = 1.046
PAVILION
CROWN
Addition # 11 - Cut in refractive indexes 1.54 to 2.14 with no changes. This is designed for long skinny-colored material and will work in gold as well. This is basically a reflector and easy to cut. The L/W is not critical.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
