Faceting Design Diagram: Baseball – Quartz – Citrine, Amethyst, Ametrine, Smokey, Rose


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

Baseball (CHECK35.JRG)
By Jeff R. Graham
Copyright 2001
85.6% Light Return
Angles for R.I. = 1.54
53 facets + 8 facets on girdle = 61
8-fold, mirror-image symmetry
96 index
L/W = 1.000 T/W = 0.330 T/L = 0.330
P/W = 0.466 C/W = 0.209
H/W = (P+C)/W+0.02 = 0.696
P/H = 0.670 C/H = 0.301
Vol./W^3 = 0.257

Addition # 6 – This works well in refractive indexes 1.54 to 1.93 with no changes. I prefer it in medium saturated material. It is for nice earrings and ring stones.


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.