Here are more pictures of the suit, including those of the inner tags.
The middle part of the tag is in Japanese. It says "dry naturally," and the "displayer[?]" (I have not come across this word before) is indicated as "Giorgio Armani Japan Ltd. Co." I am fairly certain that Giorgio Armani Japan is a legitimate venture between G.A. S.p.A and a Japan department store.
I can't remember what the tag of authenticity on my other Collezioni suits looked like, but I seem to recall them being more simple looking than this.
Also, the inner patchwork does not appear as fuzzy as my first picture indicates; I guess I am not very good at taking photos. In fact, the fuzziness is due to the letters being stitched-in by means of vertically oriented embroideries.
If the suit is not authentic, I think that it is a very good imitation, mainly because the suit has a full canvas.
Thank you for your replies, and more are certainly welcomed!