Easy Emerald Checker: Faceting Design Diagram
Information and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Easy Emerald Checker".
Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)
Easy Emerald Checker (CHECK15.JRG)
By Jeff R. Graham
Copyright 2001
84.6% Light Return
Angles for R.I. = 1.54
36 facets + 8 facets on girdle = 44
2-fold, mirror-image symmetry
96 index
L/W = 2.023 P/W = 0.450 C/W = 0.394
H/W = (P+C)/W+0.02 = 0.864
P/H = 0.521 C/H = 0.456
Vol./W^3 = 0.971
Addition # 6 - Notice that the crown on this design floats… This is to give the faceter the option to cut a deeper or shallower crown (depending on the rough) on the fly. On a shallow stone C2 can be left off and just cut C4 to meet the girdle. This is ideal for dark "c" axis Tourmaline, especially if the crown is lowered.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Jeff R. Graham
The late Jeff Graham was a prolific faceter, creator of many original faceting designs, and the author of several highly-regarded instructional faceting books such as Gram Faceting Designs.
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