Antwerp Brilliant: Faceting Design Diagram

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