Faceting Design Diagram: Blue Daisy – Topaz – Swiss, Electric, London Blue, Imperial, White, Yellow, Pink, Purple, Champange


Topaz (Swiss, Electric, London Blue, Imperial, White, Yellow, Pink, Champange)

Blue Daisy (TOPAZ4.JRG)
By Jeff R. Graham
Copyright 1993
83.4% Light Return
Angles for R.I. = 1.62
97 facets + 8 facets on girdle = 105
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.483 T/L = 0.483
P/W = 0.438 C/W = 0.184
H/W = (P+C)/W+0.02 = 0.643
P/H = 0.682 C/H = 0.287
Vol./W^3 = 0.233

Gram Book 1 – This design is very different, but it cuts easy once you get going. It is a mixed cut and the steps on the top and bottom should be the same. I like this cut in blue material, 1-12cts. Cut in refractive index 1.62 to 2.14 (91%) with no changes.

Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.