Details and information on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts and facets suitable for different gems.
Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)
"Z" Rocker (SUN31.JRG)
By Jeff R. Graham
Copyright 2006
86.7% Light Return
Angles for R.I. = 1.54
15 facets + 4 facets on girdle = 19 2-fold, mirror-image symmetry
96 index
L/W = 2.000 T/W = 1.384 T/L = 0.692 P/W = 0.564
C/W = 0.119 H/W = (P+C)/W+0.02 = 0.703 P/H = 0.802 C/H = 0.169 Vol./W^3 = 0.751
PAVILION
CROWN
Addition # 11 - Cut this in refractive indexes 1.54 to 2.14 with no changes. This is simple to cut and will work well in about any material and is designed for shiller/color. Also it works well if you split color over the center so that the color rocks.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)
"Z" Rocker (SUN31.JRG)
By Jeff R. Graham
Copyright 2006
86.7% Light Return
Angles for R.I. = 1.54
15 facets + 4 facets on girdle = 19 2-fold, mirror-image symmetry
96 index
L/W = 2.000 T/W = 1.384 T/L = 0.692 P/W = 0.564
C/W = 0.119 H/W = (P+C)/W+0.02 = 0.703 P/H = 0.802 C/H = 0.169 Vol./W^3 = 0.751
PAVILION
CROWN
- Cut this in refractive indexes 1.54 to 2.14 with no changes. This is simple to cut and will work well in about any material and is designed for shiller/color. Also it works well if you split color over the center so that the color rocks.
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
