I don't know of any for sale, but if you are a first time customer at revolve clothing you can get a 30% discount. If not that, you can go to the Grechen's closet website and there is a list of online store discount codes and you can get the Bianca for cheaper! Good luck and post pics when you get it!
Is your denim large or medium? Is it a satchel or a clutch?
I just thought of something: the botkier website had a Bianca in cream for sale! I don't remember the size of it, but I would check that too see if it is still available.