Faceting Design Diagram: Gorgeous Glitter – Peridot


Peridot

Gorgeous Glitter Jeff Graham Facet Design Gorgeous Glitter Jeff Graham Facet Design

Gorgeous Glitter (MC122.JRG)
By Jeff R. Graham
Copyright 2006
84.3% Light Return
Angles for R.I. = 1.67
115 facets + 9 facets on girdle = 124
3-fold, mirror-image symmetry
96 index
L/W = 1.077 T/W = 0.400 T/L = 0.372 P/W = 0.509
C/W = 0.233 H/W = (P+C)/W+0.02 = 0.762 P/H = 0.668 C/H = 0.305 Vol./W^3 = 0.327

Addition # 12 – Cut in refractive indexes 1.67 to 2.14 with no changes This is great in Peridot and almost any light to medium colored material.

Gorgeous Glitter Jeff Graham Facet Design

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.