Faceting Design Diagram: Jill’s Dilemma – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


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

Gram Faceting Archive of Information
This edited version of an article by the late Jeff Graham is part of a special archived informational series from Gram Faceting. Used with permission.