Star Fish: Faceting Design Diagram

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


Quartz (Amethyst, Citrine, Ametrine, Smokey, Rose)

Star Fish (MIR7.JRG) Pink Tourmaline
By Jeff R. Graham
Copyright 2004
90.8% Light Return
Angles for R.I. = 1.54
36 facets + 6 facets on girdle = 42
6-fold, mirror-image symmetry
96 index
L/W = 1.155 P/W = 0.450 C/W = 0.211
H/W = (P+C)/W+0.02 = 0.681
P/H = 0.661 C/H = 0.309
Vol./W^3 = 0.229

Addition # 9 - This works best in light colors. Cut in refractive indexes 1.54 to 1.76 with no changes. I designed this for 10mm earrings and it is quite striking in Rose de France. On a very large stone a table can be cut to meet C4. This makes a very interesting stone.

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!