I'm soo in love with these navy blue leather knee high boots from Sergio Rossi. Featuring a stiletto heel, scalloped cut out pattern, lace up detail along the back and a sequin pattern along the front.
With it's dominatrix look, any LBD (although not in leather!) would be honoured to be paired with them. Er... Don't forget your whip!
P.s. Having been reduced with 50% off from £1698 to £849 on http://www.farfetch.com/, you'll have no excuse. (Well I couldn't find one.)