French Button: Faceting Design Diagram
Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this design is called "French Button"0
French Button (CHECK23.JRG)
By Jeff R. Graham
86.6% Light Return
Angles for R.I. = 1.54
53 facets + 16 facets on girdle = 69
4-fold, mirror-image symmetry
L/W = 1.000 T/W = 0.199 T/L = 0.199
P/W = 0.470 C/W = 0.187
H/W = (P+C)/W+0.02 = 0.677
P/H = 0.695 C/H = 0.276
Vol./W^3 = 0.265
Addition # 6 - This is pretty fast and easy to cut... This design works well in refractive indexes 1.54 to 1.93 (91.2%) with no changes. I really like the shape of this stone and it makes great earrings in the 8mm to 10mm size range...
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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