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


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

Torque Bead Jeff Graham Facet Design1 Torque Bead Jeff Graham Facet Design2

Torque Bead (BEAD9.JRG)
By Jeff R. Graham
Copyright 2007
Angles for R.I. = 1.54
80 facets + 8 facets on girdle = 88
8-fold symmetry
96 index
L/W = 1.000
P/W = 0.701 C/W = 0.701
H/W = (P+C)/W+0.02 = 1.421
P/H = 0.493 C/H = 0.493
Vol./W^3 = 0.499

Addition # 14 – A table can be cut at C5, P5, or just flatten the tip a bit so there is no chipping. This is easy to cut and works well in about any material.

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.