if you have the patience, you can do a very similar design with a chain mail kit. Various online medieval shops sell bags of the little metal rings and leave it up to you to slowly put something together. It may not be as shiny as the Dior version but will cost you 1000000x less and you get to put the work into it. Like a little project!
http://www.chainmailsales.com/ring.htm
really cheesy website I know, but for something like $30 you can get pretty damn close in design to the Dior one. Just look at blown-up pics of the belt and just figure it out.