The Henckel von Donnersmarck Emerald Tiara

Photos (clockwise from top left): tiara shown with model; Katharina Henckel von Donnersmarck; tiara detail; tiara detail

When you're the wife of one of the richest men in the world, it only seems fair that you should be given a truly remarkable tiara. But I'll bet even Katharina Henckel von Donnersmarck never predicted that her emerald and diamond tiara would one day be the most expensive