Lab Notes Gems & Gemology, Fall 1983, Volume 29, No. 3

Fall 1993 G&G Lab Notes

Clarified Amber Beads
Brown-Pink Diamond with "Green Graining"
Light Violet-Gray Diamond
Strain Phantom in Diamond
Synthetic Yellow Diamond Crystal
Treated Green Diamond with a Blue Color Zone
Devitrified Glass, Resembling Actinolite
Bleached/Polymerized Jadeite Update
Unusual "Twin" Cultured Pearl
Eroded Cultured Pearls
Color-Zoned Pink Quartz
Synthetic Ruby: Another lmitation Ruby "Crystal"
Ruby in "Invisible" Mountings
Ruby as the Top Stone in an Asteriated Doublet
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