Keen Glitter: Faceting Design Diagram

Peridot

Keen Glitter (MC119.JRG)
By Jeff R. Graham
Copyright 2006
83% Light Return
Angles for R.I. = 1.67
115 facets + 15 facets on girdle = 130
3-fold, mirror-image symmetry
96 index
L/W = 1.030 T/W = 0.360 T/L = 0.350 P/W = 0.482
C/W = 0.204 H/W = (P+C)/W+0.02 = 0.706 P/H = 0.683 C/H = 0.289 Vol./W^3 = 0.266

PAVILION

CROWN

Addition # 12 - Cut in refractive indexes 1.67 to 2.14 with no changes. This is designed for Peridot and will work well in about any light to medium saturated material. It is not hard to cut and works best in a large stone.

Detailed faceting instructions by Jeff Graham available at The Rock Peddler