Tumbler: 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 "Tumbler"0
Tourmaline (Achroite, Dravite, Rubellite, Indicolite, Verdelite, Siberite)
By Jeff R. Graham
80.8% Light Return
Angles for R.I. = 1.62
64 facets + 16 facets on girdle = 80
L/W = 1.000 P/W = 0.435 C/W = 0.259
H/W = (P+C)/W+0.02 = 0.714 P/H = 0.609 C/H = 0.363
Vol./W^3 = 0.212
Addition # 10 - This is fast and fun to cut, the flash is really very pretty. I prefer this in light saturations. On large stones a table can be cut. Try this in some earrings, they are striking. This is a nice change from a round brilliant.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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