Star Gate 6: 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 "Star Gate 6".
Garnet (Pyrope, Rhodolite, Almandine, Spessartite, Grossular, Demantoid, Tsavorite)
Star Gate 6 (GNETR4.JRG)
By Jeff R. Graham
87% Light Return
Angles for R.I. = 1.73
103 facets + 6 facets on girdle = 109
6-fold, mirror-image symmetry
L/W = 1.155 T/W = 0.554 T/L = 0.480
P/W = 0.443 C/W = 0.236
H/W = (P+C)/W+0.02 = 0.698
P/H = 0.634 C/H = 0.338
Vol./W^3 = 0.284
Gram Book 1 - This is a good design for a large piece of Rhodolite rough. Because of the number of facets, I recommend that this stone should be cut on 2cts+ size. About any other light-colored Garnet will work well. Works in man-made YAG, Sapphire, Spinel…
Random - Cosine - ISO
Detailed faceting instructions by Jeff Graham available at The Rock Peddler
Garnet Value, Price, and Jewelry Information
How Do Garnets Form?
Top Spots for Gem Hunting in the US
What is the Best Lap for Polishing Sapphire?
Seven Famous Pearls and Their Histories
Opal Stones and Gems: Value, Price, and Jewelry Information
Seven Stunning but Delicate Engagement Ring Stones
When you join the IGS community, you get trusted diamond & gemstone information when you need it.
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!