Astor Star: 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 "Astor Star".

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Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Astor Star (MC63.JRG)
By Jeff R. Graham
Copyright 2002
89.2% Light Return
Angles for R.I. = 1.54
49 facets + 8 facets on girdle = 57
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.472 T/L = 0.472
P/W = 0.537 C/W = 0.202
H/W = (P+C)/W+0.02 = 0.759
P/H = 0.708 C/H = 0.266
Vol./W^3 = 0.339

Addition # 7 - This is my take on an old fashioned square emerald cut. This works very well in almost any material but particularly well in light colored materials. Cut this 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


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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