Hi Antonizz.
I stumbled across this post whilst researching a vase of my own. Not identical, and far smaller, at just 5.5" high, but similar enough enamel decoration to be of interest, I hope.
So far, I'm of the same opinion as you, i.e. French or Bohemian, mid to late 19thC perhaps?
I can't offer any more I'm afraid, but maybe a bump will generate a bit of interest.
Steve