What Pavilion?: 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 "What Pavilion?".
Topaz (Swiss, Electric, London Blue, Imperial, White, Yellow, Pink, Champange)
What Pavilion? (TOPAZ9.JRG)
By Jeff R. Graham
Copyright 1997
84% Light Return
Angles for R.I. = 1.62
87 facets + 16 facets on girdle = 103
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.534 T/L = 0.534
P/W = 0.423 C/W = 0.168
H/W = (P+C)/W+0.02 = 0.611
P/H = 0.693 C/H = 0.275
Vol./W^3 = 0.206
Addition # 2 - Note on this design in the Pavilion you will cut off 2 facets, because of the sym change. On the P4 some reach girdle, some are short, like steps but are center point. Cut P5 until center point & looks right, 1- 12cts. Cut in refractive indexes 1.62 to 1.93 (92.5%) with no changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
