The journal of gemmology.
Gemmological Association of Great Britain (1938-1990),issuing body.
1990-2007Gemmological Association and Gem Testing Laboratory of Great Britain,issuing body.
Gemmological Association of Great Britain (2007- )
Title from PDF contents page (gem-a.com, viewed March 14, 2019).
Latest issue consulted: volume 36, number 4 (2018) (viewed March 14, 2019).
Gemmological Association of Great Britain (1938-1990)
Gemmological Association and Gem Testing Laboratory of Great Britain
Gemmological Association of Great Britain (2007- )
Gemology
Journal of gemmology (London, England : 1986)
Journal of gemmology and proceedings of the Gemmological Association of Great Britain
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