Kelly Osbourne rocked the red carpet at the recent Emmys show.

But it was not because of her lovely Zac Posen lilac gown.

All eyes were on the British TV host's mother of all manicures, simply because her diamond-studded nail polish apparently cost US$250,000 (S$307,040) a bottle.

Osbourne, 27, took to Twitter to inform her fans on how terrified she was of wearing the varnish, which came from a small bottle containing 267 carats of black diamonds from Los Angeles-based jeweller Azature.

She tweeted: "About to get a $250k manicure w nail polish made w blk diamonds made by @azature so excited & honoured but absolutely s****ing myself to have that much money on my nails!"

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