The E! star tweeted an apology for wearing the expensive mani that consists of 267-carats of black diamonds and was created by jeweler Azature.
"I see that my nail polish has offended some of you, however I see your point, but it was a once in a lifetime experience. #MyApologizes," the 'Fashion Police' co-host tweeted Sept. 26. "And please forgive me for not regretting it. it made me feel like a queen!"
Osbourne, 27, also assured fans that the $250,000 mani was free for her.
"No I did not pay for it. I was just lucky enough to be the one that got picked to wear it," she tweeted.
"I have a big mouth & i know it! I just don't like knowing that I have unintentionally offended anyone! If its intentional I dont give a S***," she said.