This lends emotional value to the ring, which is why lots of people are keen on providing input.
With shaped diamond wedding rings, there are limits to what you can design. These rings are primarily meant to fit flush alongside the engagement ring. Uniqueness is not impossible to bring in though, and you can choose many aspects including the width, the size, and how the diamonds are arranged. You can easily make your shaped wedding ring stand one to stand out in any crowd.
Some jewelers provide invaluable help in this. They guide you through all of it, from the inquiry to the final touches on the polished ring. If you can find such a deal, then make good use of it. As long as you make sure to stay within budget and do not forget the small parts regarding what kind of ring you actually want, you should do just fine.