Need help to ID this necklace

[beatriceneumannphoto]

Hey everyone, I am completely clueless what time period or area this piece could be from.

Any ideas?

[wandas_attic_treasures]

I don't think the navette stones were around until after wwii late 1940s. The barreI clasp has been around for a lot longer but it looks like a fairly new design. It is beautiful.

[beatriceneumannphoto]

Anyone else any thoughts?