HONG KONG - A woman found a diamond ring worth around HK$1 million (S$172,180) in Kowloon Park on Tuesday (Sept 19) afternoon, and the item has been confirmed to be one of nine pieces stolen in a daring daylight robbery.

The ring was stolen about five hours earlier from the Tsim Sha Tsui branch of Chow Sang Sang jewellery, in Canton Road, just hundreds of metres away from the park.

The "good-hearted" and "honest" middle-aged woman brought her find to the nearby Tsim Sha Tsui Police Station, the South China Morning Post on Wednesday (Sept 20) cited a police source as saying.

Three thieves had made off on a motorcycle with HK$24 million worth of jewellery from the store.

The robbery happened at about 10am on Tuesday - half an hour before opening time - after staff took the valuables out from a vault for display.

Two of the suspects wore hats, masks and gloves, and used sledgehammers to smash a display window.

They took nine pieces of jewellery before hopping on the getaway vehicle driven by a third suspect.

According to South China Morning Post, two sledgehammers were also found in the same park on Wednesday (Sept 20) midday, believed to be linked to the robbery.

A police source said the ring was believed to have been dropped by the culprits as they got off the motorcycle and ran through the park towards Yau Ma Tei.

The motorcycle, a blue Suzuki that had been reported stolen, was found abandoned at Man Wui Street in Yau Ma Tei at about 5pm on Wednesday.

Police still had not caught the three robbers as of 12.30pm on Wednesday, and are examining CCTV footage to identify the suspects and trace their escape route.