Join Riccardo Befi, Jessica Jasso and Virginia Schneider, from GIA New York’s gem identification department, as they share the challenges related to the gem identifying turquoise in the laboratory.
Knowing the mystical qualities of turquoise -- Learning the international history of turquoise -- Studying geology & mineralogy of turquoise -- Mining turquoise -- Cutting turquoise : lapidary work -- ...
Cuireadh roinnt torthaí i bhfolach toisc go bhféadfadh siad a bheith dorochtana duit
Taispeáin torthaí dorochtana