Boom: 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 "Boom".
By Jeff R. Graham
86.9% Light Return
Angles for R.I. = 1.54
57 facets + 8 facets on girdle = 65
4-fold, mirror-image symmetry
L/W = 1.000 T/W = 0.314 T/L = 0.314
P/W = 0.453 C/W = 0.275
H/W = (P+C)/W+0.02 = 0.748
P/H = 0.606 C/H = 0.367
Vol./W^3 = 0.310
Addition # 9 - This is a little tricky to cut the first time. Note: The P3(G) just cuts in until it looks right, no meet. Cut the C3 as evenly as you can and it only meets at the C2 corners. Once you have cut this right, it will be easy to cut the next time. The corners can and will vary a little. This is designed for lightly saturated rough and works well in refractive indexes 1.54 to 2.14 with no changes.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
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