Glitter Mine #3: 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 "Glitter Mine #3".
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Glitter Mine #3 (MC95.JRG)
By Jeff R. Graham
Copyright 2006
78% Light Return
Angles for R.I. = 1.67
105 facets + 8 facets on girdle = 113
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.395 T/L = 0.395 P/W = 0.513
C/W = 0.262 H/W = (P+C)/W+0.02 = 0.795 P/H = 0.645 C/H = 0.330 Vol./W^3 = 0.316
PAVILION
CROWN
Addition # 12 - Cut in refractive indexes 1.67 to 2.14 with no changes. This works well in light to medium saturations and is very nice in light colored Zircons.
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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