Faceting Design Diagram: Quick Cushion – Beryl – Aquamarine, Emerald, Helidore, Bixbite, Goshenite, Morganite, Golden Beryl


Beryl (Aquamarine, Emerald, Helidore, Bixbite, Goshenite, Morganite, Golden Beryl)

Quick Cushion (MC28.JRG) 1.82 carat Aquamarine
By Jeff R. Graham
Copyright 1999
88.6% Light Return
Angles for R.I. = 1.56
41 facets + 8 facets on girdle = 49
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.561 T/L = 0.561
P/W = 0.513 C/W = 0.174
H/W = (P+C)/W+0.02 = 0.707
P/H = 0.726 C/H = 0.246
Vol./W^3 = 0.304

Addition # 4 – This will work in R.I. 1.56-1.76 with no changes, I designed it for smaller stones, that is why the Pavilion is so simple. Works well in about any material, I use it for earrings, 1/2ct to 4cts. This works in Tourmaline and Topaz.

 

 

 


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

About the author
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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