I've been obsessed with it since I spotted in on the console table in foyer Carrie & Big's apartment (I'm not a huge fan of the show, but it's worth seeing for the fashion alone!).
It's the called Petite Decanter Low Round and while I think the blues are gorgeous the the pink is also a fab option! Want!
Back on the topic of SATC2 (a little late I know), we have a blue velvet sofa in almost the exact same shade as the one in Carrie & Big's living room. I also love the blue "Lola Ottoman" by Anne Kyyro Quinn, though I worry about it's durability.
Set decoration for SATC is by Lydia Marks, production design is by Jeremy Conway, and you can see more of the apartment at Architectural Digest.com.