vintage dusk blue art glass vase w/ mod curvy hourlass shape, Sweden?

Swedish art glass? mod vintage hourglass shape vase - no label or signature that I could find.

We've been told this is from Sweden, but don't know where it was made, or name of the design line. The beautiful dusk blue color does look very Scandinavian modern style to us!

This stands a little over 8" tall. It's not in perfect condition - there's a couple of chips to the ground edge of the rim.