regret I can't help with attribution or even a use - it looks to be a very unusual overall shape.
There are vases, without this nappy shaped foot, and then there are dished pieces without this flower stem upright, so it's quite a puzzle. No doubt someone will now post and say it's a common shape
My opinion would be that it's a rather OTT stem vase of sorts, but that's an unsubstantiated opinion.
As to origin, my opinion would be either the States or eastern Europe - Czech or Bohemian.
The notched arrises decoration is seen on ABP material (but occurs also on material from other countries), and the buzz motif was also a very popular ABP cut design (I think this is a buzz star as opposed to pinwheel).
In fact this faceted stem showing the notches and bands of three horizontal cut lines certainly occurred on American Brilliant Period glass, and combined with the buzz star and fan cut would suggest the States, but since I know nothing about that period, it's perhaps more tempting to suggest this is a much later European copy, produced c. mid C20.
Much glass from Eastern Europe - now perhaps more correctly called Czechoslovakia - copied the earlier States cutting motifs/designs.
You don't mention wear, and despite this factor being inconclusive for dating, had this piece been one hundred years I would have expected a fair amount of underside wear - but if it were half that age then noticeably less I'd assume.
Water staining might also be more noticeable in an older piece.
Sorry this doesn't give the answer you want - let's hope one of the experts is able to help.