Faceting Design Diagram: Long Shore Man – Garnet – Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite


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

Long Shore Man (MC60.JRG) Garnet cut by Tony Carson
By Jeff R. Graham
Copyright 2001
85.6% Light Return
Angles for R.I. = 1.73
25 facets + 8 facets on girdle = 33
2-fold, mirror-image symmetry
96 index
L/W = 1.250 T/W = 1.027 T/L = 0.822
P/W = 0.537 C/W = 0.145
H/W = (P+C)/W+0.02 = 0.702
P/H = 0.765 C/H = 0.207
Vol./W^3 = 0.446

Addition # 7 – The L/W can vary on this with no problems. The corners are determined by the P4, P5 meet. If the stone is large the P3 can be tough to polish. I designed this for a ring with the bars on the crown running along the length of the finger. It will work well in man-made Sapphire and CZ.

 


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.