Emerald – Modern Gemmology

Estimated reading time: 6 minutes The book Emerald: Modern Gemmology is the first one to take a comprehensive look at emerald since the 1981...

Gems – Pierres Précieuses

Estimated reading time: 5 minutes In collaboration with Van Cleef & Arpels, the Muséum National d’Histoire Naturelle, MNHM (National Museum of Natural History) featured...
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