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


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

Laced Garnet (GNETR2.JRG)
By Jeff R. Graham
Copyright 1994
83.3% Light Return
Angles for R.I. = 1.73
73 facets + 6 facets on girdle = 79
6-fold, mirror-image symmetry
96 index
L/W = 1.155 T/W = 0.539 T/L = 0.467
P/W = 0.435 C/W = 0.241
H/W = (P+C)/W+0.02 = 0.696
P/H = 0.625 C/H = 0.346
Vol./W^3 = 0.283

Gram Book 1 – Here is a pretty one, I like it best in a light Garnet, Rose Malaya or Rhodolite work well, but not too large. Be careful when you cut the C3 facets, they have to be exact to meet the table. A larger stone is better, 1-6cts. Man-made Sapphire and Spinel work well. Cut in refractive index 1.73 to 1.93 (83.8%) with no changes.


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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