Center for Gemmological Education created by Polish Gemmological Society
(Centralny Ośrodek Kształcenia Gemmologów - COKG)
Building of Szuchman Gold International Sp. j.
Przyrzecze Str. 5, 03-107 Warsaw
Poland

Director: Dr Sobczak Tomasz

Programming Council:
M.Sc. Godziebiewski Dariusz
Prof. Heflik Wiesław
Prof. Kosmowska-Ceranowicz Barbara
Dr Koszela Stanisław
Dr Łapot Włodzimierz
Prof. Sachanbiński Michał

Gem Diamond and Gemmology Course Contents:
● Diamond grading
● Preliminary gemmology 
● Advanced gemmology 
● Amber, pearls and organic substances

Correspondence address:
COKG - Polish Gemmological Society
Skr. pocztowa 145
00-959 Warszawa 30 
POLAND

E-mail: info@ptgem.or