Faceting Design Diagram: Box 88 – Cubic Zirconia


Cubic Zirconia

Box 88 (CZ10.JRG)
By Jeff R. Graham
Copyright 1995
75.5% Light Return
Angles for R.I. = 2.20
85 facets + 12 facets on girdle = 97
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.433 T/L = 0.433
P/W = 0.377 C/W = 0.241
H/W = (P+C)/W+0.02 = 0.639
P/H = 0.591 C/H = 0.378
Vol./W^3 = 0.274

Gram Book 1 – Be careful that the C4 facets are even, or the table will give you trouble. Other than that this design is fairly simple. The reflection is higher than it looks, 1-12cts.


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.