Is rue la la authentic?
It has less to do with the vendor than the item. Even reputable sellers get caught with fakes. That said, I can't recall RueLaLa's reputation off the top of my head.
Rue La La - so far, so good. Haven't yet seen a fake onsold by them. Doesn't mean it can't happen though.
I was thinking they'd been clean so far, at least with Prada bags.