Tracking down a maker on Crystal vases can be very hard, usually you have to go by style and hope for the best. When I look at yours I would first start with Mikasa, sure looks like something they would do. I'll go poke a bit and see too, It has nice shape and looks to be very unique, Mikasa tends to make a lot of items that look Art Deco and Art Novea period but are modern and well made items. Thanks for posting.