Shannon: Your bowl looks very similar in colour and technique to the bowl on p. 132 of Venini: Catalogue Raisonne, which is a "Carlo Scarpa, Sommerso bubble vase." Also, I was in a store yesterday that had current Venini pieces very much like the bowl you picture. (Venini seem to be mining the past a great deal as they also had Zecchin vases and Wirrkala "Bolle" vessels. Nice browsing but forbidding prices.) However, I haven't found a picture of a Venini bowl with the shape of your piece, and I wonder about the volume of clear glass at the bottom. (I looked through the Olnick Spanu Collection book, which has a fair bit of Scarpa.) I don't think your piece is much like the Seguso VA piece, which I think is candleholder.
I'd be excited, too, with such a find. I'll bet (hope?) you paid a good bit less than the prices I saw yesterday.
David