I'm sorry but I didn't even know who this designer was and googling around didn't help. The next time you bring a designer up out of the blue, please give us a picture or link so we know you are talking about.
I like this bag, too so I did some quick searching. There were extensive discussions of TFS during the summer about this bag and I was able to find US contact info for Gerard Darel. The Isabella Company is the US agent for Gerard Darel (and other designers).
The Isabella Company
205 West 39th. Street, 17th Floor
New York, NY 10018
Toll free (877) ISABELLA (1-877-472-2355)
ASK TO SPEAK TO MARTA
I like this bag too and did some search right away. It turns out that Gerard Darel is a French design but there is nothing on his website, just a picture. And found this another one http://www.linternaute.com/femmes/luxe/0508sacs/6.shtml#.
Did you get more info about the bag, Lexi? Does anyone have the dimension, Michelle maybe? Thanks.