It would fit, but not that well. The Bold is a bit wider, so you would have some room to spare. Perhaps, you could put extra stuff in there with it. But, seriously, it would probably not be a good idea to go in that direction.
I got a leather OEM holster for my curve from amazon.com for 4.00. It was the regular type holster but they have many styles - even side loading etc....... Pretty cheap, there is always ebay too. For in store purchases I like the verizon stores. The one near my house is large and has many cases....