Hoody boody smorgasbord! (I'm virtually fluent in Swedish). The design does have some Scandi elements to it but then over the decades it would seem glass designers are no respecters of originality. Like most designers they have always had to come up with whatever sells best. I still like the idea of Alicja, but then there are probably many other Polish producers.
Another possibility is of course Italian. There seem to be some vases of this type of design on Ebay listed as 'Empoli', a glass producing town in Tuscany. Art of Glass has one for sale at the moment which is similar (especially the bottom), and I'm pretty sure he knows what he's talking about. I don't think I own any Empoli glass though, so have nothing to compare with. As I've now ramped you back to the top of the 'Glass' board (like a smorgasbord but not quite the same) perhaps somebody with a lot more knowledge than me will identify your vase....