Wit: Faceting Design Diagram
Successful tips, details and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Wit".
Sunstone (Feldspar, Bytonite, Labradorite, Spectrolite, Orthoclase)
Wit (SUN10.JRG)
By Jeff R. Graham
Copyright 2006
80.3% Light Return
Angles for R.I. = 1.54
49 facets + 12 facets on girdle = 61
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.514 T/L = 0.514 P/W = 0.466
C/W = 0.202 H/W = (P+C)/W+0.02 = 0.688 P/H = 0.678 C/H = 0.293 Vol./W^3 = 0.295
PAVILION
CROWN
Addition # 11 - Cut this in refractive indexes 1.54 to 2.14 with no changes. The C1,C2 steps on the crown can be omitted for thin rough. This is designed for light to medium color and is a reflector, which will help get more light into the stone and prevent color mixing. Note: The P3(G) girdle facets just float, cut them as close as you can to the diagram. They are not critical.
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
Bytownite Value, Price, and Jewelry Information
Orthoclase Value, Price, and Jewelry Information
Feldspar Value, Price, and Jewelry Information
Labradorite Value, Price, and Jewelry Information
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!