hmm I don't know, to be honest! Just on the basis of Desi's photos I would probably have said he wasn't satin, but satins are notoriously hard to photo and get the colours/satin right. And to add to it, we have a satin golden banded girl (who isn't too satin any more as she is nearly bald - but that's another story
) and for the longest time we couldn't decide whether she was or wasn't, and it was only seeing another in the flesh that helped us decide, so I'd say that if you feel she is then its a good chance you're right. As the others say, probably taking him to a show would help you get to the bottom of it (or maybe not if Basia and Holly's sables are anything to go by lol).
He is looking good though, and I bet he thanks his lucky stars that he is now in such a lovely loving home!