Little Diff: Faceting Design Diagram
Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Little Diff".
Beryl (Aquamarine, Emerald, Helidore, Bixbite, Goshenite, Morganite, Golden Beryl)
Little Diff (AQUA8.JRG)
By Jeff R. Graham
Copyright 1995
75% Light Return
Angles for R.I. = 1.56
47 facets + 8 facets on girdle = 55
2-fold, mirror-image symmetry
96 index
L/W = 1.330 T/W = 0.739 T/L = 0.555
P/W = 0.512 C/W = 0.226
H/W = (P+C)/W+0.02 = 0.758
P/H = 0.675 C/H = 0.298
Vol./W^3 = 0.461
Addition # 2 - You need a preform. The P3, P4(G) facets don't meet anything except the girdle, just cut them until they look right. That's why 1.33 L/W preform is important. Also roughing in the table at C6 helps, 1-12cts.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
