Lab Notes Gems & Gemology, Summer 2008, Volume 44, No. 2

Summer 2008 G&G Lab Notes

Diamond with Color Contributed by the 594 nm Center (?)
Subtle Flash-Effect Colors in a Filled Diamond
“Unidentified Clarity Characteristic” in Diamond
Gem-quality CVD Synthetic Diamond with Traces of Boron
Bleached Pinctada Margaritifera Cultured Pearls in Non-“Chocolate” Colors
Blue-Green Plagioclase Feldspar Possibly Colored by Copper
Unusual Green Fluid Inclusions in Quartz
Inclusions within Inclusions in Ruby
Blue Sapphire with Unusually High Concentration of Rare-Earth Elements
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