Police are appealing for witnesses following a theft from a jeweller’s in Lancaster.
The incident happened on Tuesday, August 7, at HM Samuels on Market Street between 4pm and 4.10pm.
A man asked to see some engagement rings which were located in a display cabinet.
A staff member placed a ring on the counter and the man snatched it and ran off.
The ring was worth over £3,000.
A CCTV image of a man police want to speak to in connection with this incident has been released.
PC Philip Williamson from Lancaster police said: “I would appeal to anyone who recognises this man to come forward and get in touch.
“I would also appeal to people who may have been out in Lancaster City Centre on the Tuesday afternoon who may have seen a man acting in a suspicious manner who was perhaps running down Market Street.”
Anyone with information is asked to call Lancaster police on 101 or Crimestoppers anonymously on 0800 555 111.