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Jeffrey Campbell Lita Platform Boot in Slate Suede, currently $162 at NastyGal.
I'm not the kind of person to spend that much money on shoes, though, so I've been looking around for an alternative and came up with these:
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Betsey Johnson Serenn Platforms in Gray Suede, currently $29.99 at Street Moda (MSRP $160)
I've never bought anything from Street Moda before, so I was a little apprehensive - the rather eclectic brand collection seemed a bit strange, but they have an A+ ranking from the BBB and a quick Google search turned up a good amount of positive reviews, so I gave it a shot.