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