Deeply Ceylon Blue: Faceting Design Diagram
Successful tips and guide on Faceting Designs. Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Deeply Ceylon Blue"
Sapphire / Corundum (Ruby, Ceylon, Padparadschah, Pink, Yellow, Green)
Deeply Ceylon Blue (MC59.JRG)
By Jeff R. Graham
Copyright 2002
81.9% Light Return
Angles for R.I. = 1.76
85 facets + 12 facets on girdle = 97
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.500 T/L = 0.500
P/W = 0.555 C/W = 0.176
H/W = (P+C)/W+0.02 = 0.751
P/H = 0.739 C/H = 0.235
Vol./W^3 = 0.339
Addition # 7 - The corners just need to be cut in on this until they look right to you. They are made to float for weight yield. This is designed for deep native cut stones.
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
