Kelly Osbourne sported the most expensive manicure in the world at the Azature Black Diamond Affair at Sunset Tower in Los Angeles. She took to Instagram to reveal the manicure is worth $1 million and it’s for a good cause.

The Fashion Police star wrote that if she helps spread the word about the nail polish and someone buys it, a large amount of money will be donated to The Sharon Osbourne colon cancer foundation and Race to Erase MS.

“Who remembers my $250,000 @AZATUREmanicure from the Emmys last year? Well... last night I had the honor of being the only girl in the world to test out the Million dollar white diamond #AZATUREmanicure!” she wrote.

“I still can't get my head around the price but if I help this magnificent little bottle get sold a BIG amount of money will be donated to The Sharon Osbourne colon cancer foundation and Race to Erase MS!”

She went on to thank them for picking her to wear it, saying “I feel like a princess but you really are the#blackdiamondking! You are so good to me.”

Last year, Osbourne showed off her $250,000 black diamond manicure on the red carpet of the Emmys. She tweeted at the time she was “absolutely s—ing myself to have that much money on my nails!”

She got a lot of backlash for it, so she apologized, saying it was a “once in a lifetime experience.”

image: NBC