Looking for Italian Sparkling Wine

[TexasWook]

My wife and recently returned from our honeymoon in Italy and have been trying to track down a fabulous bottle of Italian Sparkling Wine/Champagne that we had in Florence that was called "Blu di Blu" and haven't had any luck. The resturant we were at told us that the sparkling wine was only available in that region. I've been looking on the web and haven't been able to find it listed anywhere. I was wondering if anyone could help.

Thanks in advance,