Great White
Our fashion editors first called out the appeal of a crisp white tuxedo jacket in the Next Big Things guide in our January issue, and I've been craving one ever since. I've seen a few different iterations floating around
the market, and I think I've settled on this sharply tailored version with graphic black piping by Rag & Bone. 
It's the same one Kate Bosworth was wearing at their spring '08 show a few months back, along with slim dark jeans, a crisp oxford buttoned all the way up to the collar, and slicked-back hair, and the end result was understated and mind-blowingly glamorous. I like the idea of doing as she did and adding denim to downplay its fanciness, or going completely all-out and using it as a cover-up for a floor-length black-tie dress.
I am in love with this blazer...the black piping is fantastic and the only way I would wear it is with dark denim jeans, that, as you mentioned, keep the look slightly understated
http://www.my-lookbook.blogspot.com/