I'm new at this, having inherited and needing to properly liquidate the estate of a serious US collector. I've got some books but no experience.
On this vase: There are no mold marks but also no pontil mark (unless ground away); and no trademark. The base has normal-looking wear marks.
The side corset ribs are definitely cut, and edges of the lower facets and bottom star are crisp, so this isn't simply pressed glass. I have known examples of old cut and pressed glass to compare with.
The glass has a slight yellowish tinge, only noticeable when looking at the thicker parts. It rings more than does pressed glass but not as much as crystal. And it's relatively heavy: at 7" tall the vase weighs 26 oz - though this is in part because the walls are / seem thick. Under my 395nM UV light there is no particular shade (eg. no green or yellow glow).
The guess at UK Georgian is because of the facets on the base and the vertical cut strokes; and I find nothing like this in US pattern glass books. However, the yellow tinge is odd for Georgian, and is also a reason to doubt my original thought of flint glass because that would be gray (though this does look gray where it doesn't look yellow...).
Any thoughts, especially on date or era / type of glass / nation would be welcome. I don't expect to identify a maker and probably not even a style name. Thanks!