Antique 2: Faceting Design Diagram
Detailed information and guide on Faceting Designs. A Faceting Design Diagram by Jeff R. Graham that presents various cuts, this one is called "Antique 2".
Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)
Antique 2 (GNETP5.JRG)
By Jeff R. Graham
Copyright 1993
84.7% Light Return
Angles for R.I. = 1.73
45 facets + 8 facets on girdle = 53
4-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.366 T/L = 0.366
P/W = 0.406 C/W = 0.207
H/W = (P+C)/W+0.02 = 0.633
P/H = 0.641 C/H = 0.327
Vol./W^3 = 0.240
Gram Book 1 - This design cuts easy and fast in any material. Be careful when you cut the C4 facets to make sure that they are even so that the table meets, 1-6cts. Cut in refractive index 1.78 to 1.93 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.
Related Articles
Garnet Value, Price, and Jewelry Information
How Do Garnets Form?
Garnet Symbolism
Top Spots for Gem Hunting in the US
Latest Articles
Precision Faceting a Story Gemstone: Choosing Rough
32 Green Gemstones (How Many Do You Know?)
A Guide to Antique Georgian Jewelry
Hambergite Value, Price, and Jewelry Information
Never Stop Learning
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
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!