If you want a collar just to wear to hold ID tags, rolled leather is nice, but that looks like a choke collar of some sort? I would not use that kind of a collar on a cavalier.
Mine used to have a normal rolled leather collar. They did great with it, but now they just wear harnesses. Currently we're using step-in harnesses from www.upcountryinc.com. My dogs are pullers and even though I really like the Puppia harness they don't work for us as they tend to pull a lot more when they are wearing them.
(a.k.a. Lucky's & Sparky's mom!)