Faceting Design Diagram: Little Mo – Garnet – Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite

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Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)

Little Mo (MC62.JRG) Mali Garnet
By Jeff R. Graham
Copyright 2001
83.1% Light Return
Angles for R.I. = 1.73
52 facets + 12 facets on girdle = 64
3-fold, mirror-image symmetry
96 index
L/W = 1.075 T/W = 0.470 T/L = 0.437
P/W = 0.419 C/W = 0.223
H/W = (P+C)/W+0.02 = 0.663
P/H = 0.633 C/H = 0.337
Vol./W^3 = 0.241

Addition # 7 – I designed this for a nice size yellow/green Mali Garnet. This is very deep to help color and dispersion. Notice the facets are smaller and they cross each other to help increase sparkle. This works well in man-made Sapphire, Zircon, and CZ with no changes.

 


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.