I just bought a Borrelli LV cotton blazer, sized EUR 54. I am normally an EUR 52L, but many Italian brands fit better in 54.
(However, sizing seems to vary a lot for those "high end", "hand made" brands, so knowing your measurements is a must.)
Back to my EUR 54R Borrelli LV - it was perfect over the shoulders, perfect length (I am tall but my jacket preference is sliiiightly shorter), but wide at the waist.
Wide is however a small problem as I had it taken in a bit, so...