Hi Kirk and welcome to the board

The board is very quiet at the moment unfortunately but hopefully someone will recognise the symbol mark on your vase.
Your vase isn't boring, it's very stylish. I like it a lot but can't think where to start on the mark. It does remind me of some Scandinavian pieces in style and heft with the thick clear casing, particularly Anna Ehrner for Kosta Boda, but I'm sure it isn't that.
As I say, hopefully someone will be along who recognises that three U symbol mark. But... sometimes it can take years for something to suddenly be identified

so keep checking your emails just in case.
m