You can always bet on a red carpet full of neutral nails, just like the ones Karolina Kurkova donned at the Met Gala festivities. And while it's a classy way to make any ensemble look put together, you can't beat a little colour, either. See which stars went down the neutral route and who picked a pop of punchy colour (like yellow!) at this year's Met Costume Institute Gala.
2012 Met Costume Institute Gala: The Must-Have Manicures Up Close
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