Lilac Lace: 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 "Lilac Lace".
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Lilac Lace (DOME14.JRG)
By Jeff R. Graham
Copyright 2007
86.7% Light Return
Angles for R.I. = 1.62
61 facets + 6 facets on girdle = 67
6-fold, mirror-image symmetry
96 index
L/W = 1.155 T/W = 0.265 T/L = 0.230 P/W = 0.419
C/W = 0.266 H/W = (P+C)/W+0.02 = 0.705 P/H = 0.595 C/H = 0.377 Vol./W^3 = 0.256
PAVILION
CROWN
Addition # 13 - Cut this in refractive indexes 1.62 to 2.14 with no changes. This works well in light to medium saturated stones. I like it in Rubellite and hot pink Tourmaline. The crown can take a bit of tweaking. NOTE: The C3 tier is just cut to eye and it can be varied slightly.
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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