Lanvin has bought a touch of luxe to this incarnation of the traditional cuff link. Lanvin’s accessories are the epitome of modern, masculine elegance, and lend an unerringly polished accent to any formal outfit. Perfect for black-tie events over Christmas and the New Year, it is little details like this that push an outfit from smart to truly sartorially satisfying.  £125 from www.matchesfashion.com.