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.
A Rare Ruby from Montana
Freshwater Pearls, Blister and Loose, with Their Host Shells
Cat’s-Eye Brazilian Paraíba Tourmaline
Chatoyant vivid blue Brazilian tourmaline is examined in the Bangkok lab.
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