Anyway No I don't have a ring like this and I wasn't able to find a picture but I did find this simulation on theknot.com that will give you and idea of how it will look. Its cool, you can pick any shape sides or center. http://weddings.theknot.com/ering/
hope this helps
and by "idea" I do mean a rough idea the proportions are weird and the RB pictured is a terrible cut