Unusual and lovely shape on this American brilliant cut glass vase, it's like a reverse corset shape, smaller at the top! This is very, very heavy, and measures about 11 1/4" tall.
This is not marked or signed that I could find - I would guess it's early 1900s vintage from the general style and large size.
There's noticeable wear / scratching to the bottom of the foot as you'd expect to find on a piece of this age. I found only a few minor roughnesses besides that, vase rim looks good. Glass has no clouding, it's clear without age discoloration.