Jelly cats cost depends on the size. These stuffed animals range from keychain size to really big. Estimated $15-$300. This also varies because they aren't all the same animal.
Closest expample is of same is a small bear is $20 and the biggest I could find is $120 on the Jellycat webcite. The picture below is a dragon jellycat which is one of the more expensive Jellycats starting at $60.