There are some moulded beads and quite delicate pendants in speckled green glass in the 1920s to resemble carved jade which might easily have been produced by Czechs to cash in on the craze for chinese-looking jewellery, like the moulded Egyptian and other exotic themed beads and necklaces of that time.
Peter Francis shows individual moulded beads imitating stones ("from Korea") on p 90 of Beads of the World.
Stefany