Cat’s-Eye Brazilian Paraíba Tourmaline
Chatoyant vivid blue Brazilian tourmaline is examined in the Bangkok lab.
Freshwater Pearls, Blister and Loose, with Their Host Shells
Three freshwater pearls, two blister and one loose, were examined in the New York lab.
Gemological Analysis of Lightbox CVD-Grown “White” Diamonds (英语)
Lightbox, a De Beers company, has begun selling “white,” pink, and blue CVD laboratory-grown diamonds at a flat rate of $800 per carat.
Large Pargasite Inclusion in Kashmir Sapphire
Unusually large prismatic pargasite inclusions observed in a Kashmir sapphire submitted to the Carlsbad lab for origin determination.
A Rare Ruby from Montana
An exceptional ruby specimen is identified with a Montana origin in the Carlsbad lab.
An Irradiated CVD Synthetic Melee Diamond Found in Irradiated Natural Melee Diamonds
Single irradiated CVD synthetic was identified in a parcel of irradiated natural melee diamonds in the Tokyo lab.
Manufactured Gold-in-Quartz Jewelry
Manufactured gold-in-quartz jewelry was examined in the Carlsbad lab.
Natural Diamond Mistaken as HPHT Synthetic
Declared synthetic diamond identified as natural in the Carlsbad lab.
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