Faceting Design Diagram: Flight of Blue – Beryl – Aquamarine, Emerald, Helidore, Bixbite, Goshenite, Morganite, Golden Beryl


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

Flight of Blue (MC74.JRG)
By Jeff R. Graham
Copyright 1998
80.6% Light Return
Angles for R.I. = 1.56
27 facets + 7 facets on girdle = 34
1-fold, mirror-image symmetry
96 index
L/W = 1.412 T/W = 0.827 T/L = 0.585
P/W = 0.380 C/W = 0.157
H/W = (P+C)/W+0.02 = 0.557
P/H = 0.682 C/H = 0.282
Vol./W^3 = 0.215

Addition # 7 – This is actually easier to cut than it may look. Cut P1 to P8 and make sure that you have the correct L/W=1.412. NOTE cut the P8 in to get the correct L/W and then cutting P7 is easier… This is not really meet Point. It works well in Tourmaline and Topaz.


Random – Cosine – ISO

Detailed faceting instructions by Jeff Graham available at The Rock Peddler

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.