Paris Hilton got lucky after losing an enormous diamond-studded ring on an airport shuttle bus in the Polish city of Lodz last week.

But the 34-year-old socialite won't be parted from the jewel for long: an honest fireman who found it is returning it to her.

Ewa Bienkowska, the airport spokeswoman, said Paris lost the ring on Friday as she was leaving the city after taking part in a fashion event.

Two days later, a fireman who works at the airport found it on the floor of the bus. At first he assumed it belonged to a flight attendant, though none reported missing a ring.

Soon after he noticed Paris on TV wearing the ring and contacted the organisers of the fashion event.