Your vase appears to be made in the spirit of the Murano lenti vases. I saw a vase similar to yours being sold as Barovier the other day, but I do not think the attribution was correct. The Murano lenti (Barovier and Seguso) pieces have "lumps" that are molded than applied. The ones I have seen are all the same size and nicely rounded. The ones on your vase look like they may be molded onto the surface, have more space between them than the classic Murano lenti, and have two different sizes. The walls of your vase look thinner than the Murano lenti vases.
From the colors I suspect that your vase may either be Czech or Blenko. I don't know, but I hope this will help some. Can you tell if the "lumps" were molded into the glass or if they were applied? If they are molded into the glass, it will tell you a lot. It is a pretty vase, no matter who made it.
Anita