Isn't "refurbished" (through
Nordies Rack) when they have a return that looks perhaps slightly used and they clean it and then sell it? I don't think they can sell it as "new" if it looks like it was worn a couple times, even if they do clean it. I think it goes to the Rack as refurbished after that...
That could be a by-product of their very lenient return policy - the "I'd like to return this - oh - I bought this but never wore it even though the tags are gone" customers, who actually wore it twice, put it in the closet for 7 months, then returned it type of a thing. I could be wrong, but I think that's what the refurbished tag means.
That being said, I got a great deal on a Michael Kors bag from the Rack a few years ago that was labeled "refurbished," and it was in perfect shape, better shape actually than some of the bags they were selling as new that were jumbled on the clearance table and scratched. Mine did not have a rivet, though.
You may have to contact the specific manufacturer directly about the rivet/ warranty question - I am not sure.