Faceting Design Diagram: Crazy Square – Garnet – Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite


Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)

Crazy Square (GNETP1.JRG)
By Jeff R. Graham
Copyright 1993
92% Light Return
Angles for R.I. = 1.73
24 facets + 4 facets on girdle = 28
2-fold, mirror-image symmetry
96 index
L/W = 1.000 P/W = 0.419 C/W = 0.154
H/W = (P+C)/W+0.02 = 0.594
P/H = 0.706 C/H = 0.260
Vol./W^3 = 0.249

Gram Book 1 – This design is shallow for dark material and cuts a nice stone in the 1- 6ct range. I like it for earrings especially, because they sell very well and are different. A table can be cut (and should be) as the stone gets large. I like it without one for small and/or darker stones. The corners can be a little fragile, but in general are no problem. Cut in refractive index 1.73 to 2.14 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.