Rose, I think after looking at your vase again, the signature is a quick and sloppy AJ 2004. I think your vase is their # JW023 Adam Jablonski Art Glass Vase in mauve or brown or whatever color yours is (I'm a bit color deficient)... online stores describe it as:
Art Glass Vase- approx 10" tall w/ wavy top; Rose (or whatever color) with frosted base with purple (or whatever color) ribbon.
24% lead crystal
Signed by artist