Sapphire / Corundum (Ruby, Ceylon, Padparadschah, Pink, Yellow, Green)

Glitter Drop (MC99.JRG)
By Jeff R. Graham
Copyright 2006
83.3% Light Return
Angles for R.I. = 1.76
116 facets + 17 facets on girdle = 133
1-fold, mirror-image symmetry
96 index
L/W = 1.108 T/W = 0.474 T/L = 0.428 P/W = 0.423
C/W = 0.207 H/W = (P+C)/W+0.02 = 0.650 P/H = 0.650 C/H = 0.319 Vol./W^3 = 0.243

Gram Book 1 - Cut in refractive indexes 1.76 to 2.14 with no changes. This is designed for light to medium saturated material. Note: The P8 just meets the P5 facet junction at 15-81.

 

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