regret to say Fran that highly unlikely you'll discover a maker or specific country of origin.
Judging by the flat base and what appears to be a slightly yellowish colour to the glass - I'm tempted to suggest it's Continental rather than the U.K. British vases often have a star cut base of some sort. It may well not produce any ring when flicked, so possibly not lead glass.
The cut decoration looks to be lines of relief diamonds in spiral form, with fan escallop/fan cut edge - designs which go back well into the C18.
Does the cutting feel sharp, or perhaps acid polished, and therefore less sharp??
for what it's worth my opinion on age would be rather vague - somewhere in the first quarter of the C20 - but not easy to be sure. With vases, water staining can be a problem, but this looks to be quite clean, so perhaps not as old as you've suggested.
Pieces like this are impossible to attribute, usually, and difficult to date accurately - but let's see what others think - someone might have a better idea. Always useful though