I always think it's a good indication of seiyuus' low status in the celebrity world when I see them wearing their own clothes at events, rather than being supplied with outfits.
The recent Gosick special is another example: Yuuki Aoi is wearing a skirt she has worn since at least November 2006. I'm not being critical. I love it when people are able to look good economically.
Anyway, here are the photos. First, at home in November, 2006 (age 14):
Next, in early 2010, with Saitou Chiwa at a Vampire Bund event (almost 18):
Finally, in Monday night's TV broadcast about Gosick (almost 19):