Jill's Dilemma: 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 "Jill's Dilemma".

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

Jill's Dilemma (MC50.JRG) Jill at 4 months... Anybody want to play in the sprinklers???
By Jeff R. Graham
Copyright 2002
90.2% Light Return
Angles for R.I. = 1.62
65 facets + 12 facets on girdle = 77
2-fold, mirror-image symmetry
96 index
L/W = 1.115 T/W = 0.441 T/L = 0.396
P/W = 0.474 C/W = 0.175
H/W = (P+C)/W+0.02 = 0.669
P/H = 0.708 C/H = 0.262
Vol./W^3 = 0.238

Addition # 7 - This is in refractive indexes 1.54 (79.9%) to 2.20 (91.9%) with no changes. Why the name? Well, I was helping raise and train a Guide Dog for the Blind puppy named Jill (a white lab). One day (she was 3 months old) I was sorting some rough Citrine crystals and one bounced on the floor where she was playing. Yes, she swallowed it like lightning, so we had to wait for nature to take it's course. I later designed this cut for that piece of rough...


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.

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