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.
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.
A Rare Ruby from Montana
An exceptional ruby specimen is identified with a Montana origin in the Carlsbad lab.
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