Laced Garnet: Faceting Design Diagram

Successful tips and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Laced Garnet".


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

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.

Never Stop Learning

When you join the IGS community, you get trusted diamond & gemstone information when you need it.

Become a Member

Get Gemology Insights

Get started with the International Gem Society’s free guide to gemstone identification. Join our weekly newsletter & get a free copy of the Gem ID Checklist!