Sholtz’s Strudel: 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 "Sholtz's Strudel"
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
Sholtz's Strudel (MIR6.JRG)
By Jeff R. Graham
Copyright 2004
91.8% Light Return
Angles for R.I. = 1.62
33 facets + 8 facets on girdle = 41
4-fold symmetry
96 index
L/W = 1.000 T/W = 0.204 T/L = 0.204
P/W = 0.422 C/W = 0.196
H/W = (P+C)/W+0.02 = 0.639
P/H = 0.661 C/H = 0.307
Vol./W^3 = 0.259
Addition # 9 - Note: The corners on this can be varied, in general, cut the corners as close to the diagram as you can. This cuts very fast and is nice in about any material. Cut in refractive indexes 1.62 to 1.93 with no changes.
Random - Cosine - ISO
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.
Related Articles
Tourmaline Gem, Price, and Jewelry Information
A Look at African Paraíba Tourmaline Rough
Advice For Grading Dark Colored Gemstones
A View of the Quartzsite Gem Shows
Latest Articles
Amethyst Sources Around the World: The Geological Story Behind These Purple Gemstones
Brazilianite Value, Price, and Jewelry Information
Ruby-Glass Composites vs Leaded Glass Clarity Enhancements
Morganite Buying Guide
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
Get Gemology Insights
Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!