News

Spiral structure in a Colombian emerald
Beads cut from gastropod mollusc shell disguised in a coral necklace
Research

Beads cut from gastropod mollusc shell disguised in a coral necklace

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Multi-treated HPHT-grown synthetic diamonds
Micrographs, Research

HIH: Multi-treated HPHT-grown synthetic diamonds showing some characteristics of natural diamonds

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GGTL Laboratories
Insight

GemTechLab et Gemlab deviennent GGTL Laboratories

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Natural “quahog” pearls from the M. mercenaria mollusk
Research

Natural pearls of the Veneridae family

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