Antwerp Brilliant: Faceting Design Diagram
Information and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Antwerp Brilliant".
Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)
Antwerp Brilliant (CHECK84.JRG)
By Jeff R. Graham
Copyright 2002
88% Light Return
Angles for R.I. = 1.54
49 facets + 8 facets on girdle = 57
2-fold, mirror-image symmetry
96 index
L/W = 1.331 T/W = 0.461 T/L = 0.346
P/W = 0.639 C/W = 0.221
H/W = (P+C)/W+0.02 = 0.880
P/H = 0.726 C/H = 0.252
Vol./W^3 = 0.497
Addition # 8 - Cut in refractive indexes 1.54 to 2.14 with no changes. I like this in about any material, it is especially nice in medium colored materials.
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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