Diane's purple Jean Paul Gaultier dress she wore at the Cartier International Day stole the spotlight, but I didn't forget about her lovely jeweled sandals. Oh no I didn't! Without further ado, I present to you Prada's Jeweled T-Strap Sandals, $690. Diane sported the black version of these beauties, that, in my humble opinion, are worth every single penny. Just look at them - they're delectable!