Zip: Faceting Design Diagram
Successful tips, details and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Zip".
By Jeff R. Graham
89.4% Light Return
Angles for R.I. = 1.54
15 facets + 4 facets on girdle = 19
L/W = 1.000 T/W = 0.656 T/L = 0.656
P/W = 0.462 C/W = 0.099
H/W = (P+C)/W+0.02 = 0.581
P/H = 0.795 C/H = 0.171
Vol./W^3 = 0.220
Addition # 7 - This is a design made for accent stones. The best way to cut this is to cut a square girdle first. When I say edge on P4(G), I mean cut to the long edge. The best way to do it is cut until the P4(G)just meets 72 index (cutting the pavilion). This is actually pretty easy and works great for 1.54 to 1.93 with no changes. I like it cut in red Garnet.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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