Subject: Hmm.
Author:
Posted on: 2014-06-13 19:07:00 UTC
Interesting, but I can poke one little hole in that one: Frodo did see Galadriel's ring for himself. From "The Mirror of Galadriel":
[Eärendil's] rays glanced upon a ring about her finger; it glittered like polished gold overlaid with silver light, and a white stone in it twinkled as if the Elven-star had come down to rest upon her hand. Frodo gazed at the ring with awe; for suddenly it seemed to him that he understood.
From the above passage, we know that at least Nenya has a stone, just like Gandalf said. They talk a bit more about rings, and she implies that Elrond knows about hers (if not all the Three). She also seems to identify Frodo's ring as the One Ring. Not necessarily conclusive, but I'd think she knows what she's talking about.
~Neshomeh