The beads at first made me think Czech. The pendant however is more typical of apossible Asian origin but also looks like it could be French, by Rousselet.
A closer look at the hole might be able to give a clue. The French made these beads on copper wire, which was then dissolved in acid, while the Czechs used a mandrel with a powder coating.

It is also an option that two pieces were combined into one. This jade color and pattern was very popular and very similar between different makers.