Drop Zone: Faceting Design Diagram

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

Drop Zone (MC48.JRG)
By Jeff R. Graham
Copyright 2002
83.4% Light Return
Angles for R.I. = 1.73
37 facets + 12 facets on girdle = 49
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.244 T/L = 0.244
P/W = 0.406 C/W = 0.215
H/W = (P+C)/W+0.02 = 0.641
P/H = 0.633 C/H = 0.336
Vol./W^3 = 0.230

Addition # 7 - The corners are made to float in so that this design can be cut in different sizes. Cut until it looks about right, the "X" can vary in size. This is great for Garnets.

Random - Cosine - ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler