The prettiest frame and fork I have ever owned, and the only bike I have truly regretted selling, was a Bertoni Master. It was built with Columbus SLX tubing, chrome stays and fork, internal rear brake routing, and a beautiful dark red/dark blue/dark green with black marbled paint job.
I foolishly sold the bike a few years back to get something newer. That something newer is long since gone, but I wish the Bertoni wasn't.