Not diamonds and gold but it is stainless steel and not the cheap quality. Actually, the back side is a plexiglass shield to keep those little beaks away from a window frame.
I have to say, it is very good quality, if you can swing the cost, and not some cheap thing thrown together. I have seem them and had my hands on them so I can attest to their quality. Three times I have helped them load back up after they have done a show and can say they take pride in what they have made to their specifications and sell.