This is my first post and I too wondered about the quality of Lanvin Italian made shoes. I purchased two pair from Barneys http://www.barneys.com/Lanvin-Perforated-Cap-Toe-Blucher/502203407,default,pd.html?cgid=men&index=0
It was commented that these were possibly made by Sutor Mantellassi. I did a little perusing of my own and at minimum found a few similarities between Sutor and Lanvin--specifically on the sole.
The tacking used on the toe of the sole is identical on both which is somewhat unusual--my experience is limited to shoes that I own, CJ, John Varvatos, Lanvin, Gucci, Ermenegildo Zegna, Paul Smith, Surface To Air, Santoni, To Boot New York and John Lobb.
I liked the aesthetics of the shoe and they appear to be of decent quality. Not sure they constitute the $1045 I paid for them though.