I'm quite happy to be wrong, of course.
The main difference between the ones I've seen and your vase is that the definitely Chinese ones had the usual rough-ground base... but the kinds of large, simple, shapes and colour combinations are very very similar.
I was quite surprised at the quality of the decorative cutting on the few Chinese battuto pieces I've handled in shops. The incalmo glass, too, was about as good as some of the lower-end Murano furnaces.