Toilets, Sinks, Showers, Tubs and Disposals - Looking for replacement part

Hello, I have a leaky faucet and am looking for a replacement part. This is a unique raised faucet that empties into a glass bowl that sits on top of the vanity so it is not a standard part. I have not been able to even find a manufacturer name anywhere on the thing to tell me where to start. The only writing on the entire assembly once I took it all apart was on the piece that is broken.
Attached are some pics of the faucet and also of the broken piece. This part is basically all plastic and has broken inside so that it can no longer seal closed and water just flows out the top.
Any help identifying the manufacturer or possibly where to get a replacement part would be appreciated. I've tried a couple local plumbing stores and they were not able to figure it out either.
I'm hoping I don't have to replace the entire faucet assembly. Google only turns up another posting on a forum with the same problem --and no answer! :rolleyes:

Here is the bad part. It's not clear but the marking says "NSF 1B720-01"
This part does come apart but I assume the replacement would be this whole blue piece.

http://i630.photobucket.com/albums/uu27/brusterVA/bad-part.jpg


Here is the faucet:
http://i630.photobucket.com/albums/uu27/brusterVA/faucetforbad-part.jpg

Thanks if you can help!

it very closely resembles the Versailles Single Hole Joy Stick Vessel Faucet by huntington brass

that is the best i can do for ya sorry