The 28-year-old flaunted her diamond ring while showing off her new glitter manicure.
Kelly, who got engaged to vegan chef Matthew Mosshart last week, shared the photo with fans after spending some quality time with her dad, rocker Ozzy Osbourne.
Diverting attention away from the ring, Kelly instead focused on her super-long glitter talons with cross embellishments.
She captioned the photo: "Loving my new manicure thank you #esnails."
The Fashion Police co-star met Matthew at supermodel Kate Moss' wedding to Jamie Hince back in 2011.
The loved-up couple dated for two years before Matthew popped the question to her while they were on a romantic holiday on Caribbean island Anguilla.
In another photo from Kelly and Ozzy's bonding session, Kelly showed off her dad's black gothic manicure.
With Ozzy's hands protectively placed over her ring, Kelly said: "My dad got his nails done too! Look how cool they look!"
Since news of their engagement, Kelly's mum, X Factor judge Sharon Osbourne, has publicly sent her congratulations to the happy couple, saying that Matthew was "worth waiting for".
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Copyright: Instagram Mark Wright