Descripción
Publicado:Vol. 20, no. 1 (Jan. 1986)-
Notas:Vols. for 1986-Apr. 1990 include: Proceedings of the Gemmological Association of Great Britain and association notices; for Oct. 1990- include: Proceedings of the Gemmological Association and Gem Testing Laboratory of Great Britain and notices.
Frecuencia de Publicación:Quarterly
ISSN:2632-1718
1355-4565
0022-1252