The Olive Leaf ring I'm pretty sure is real, but I just wanted to confirm that engraving that is rubbed off is something that happens with Tiffany's rings since my other pieces have never been rubbed off. As for the curved ring, I've seen the real version and the edges are a bit more rounded and the ring overall is a bit thicker (or chubbier, if that makes any sense). The metal of the curved ring doesn't exhibit the normal scratching I've seen on all of my Tiffany pieces (my necklaces scratch easily even when I take very good care of them). When I said "clearly fake," I was mentioning to the box that was included. I have attached a photo of the box and the pouch that the seller said she received when she took the ring in to get cleaned at Tiffany's.
I also want to mention that the zig zag ring is replicated quite easily with all of the engraving:
http://www.alsogifts.com/tiffany-co...g-p-518.html?zenid=teguk5flsn1lqusd30strerpg3