Flat Eye: Faceting Design Diagram
Detailed information and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Flat Eye".
Spinel (Red, Pink, Lavender, Green, Blue, Orange, Violet)
Flat Eye (SPINEL8.JRG)
By Jeff R. Graham
Copyright 1998
76% Light Return
Angles for R.I. = 1.71
41 facets + 8 facets on girdle = 49
2-fold, mirror-image symmetry
96 index
L/W = 1.250 T/W = 0.814 T/L = 0.651
P/W = 0.393 C/W = 0.143
H/W = (P+C)/W+0.02 = 0.556
P/H = 0.707 C/H = 0.257
Vol./W^3 = 0.194
Addition # 2 - This is very nice and helps use up some of that flat rough that I always put off cutting. It works well in Garnet, CZ, Zircon, and Sapphire. It's light return is better than the ray trace says, 1/2-8cts.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
