Police are looking for three men wearing hoods were spotted near the scene of a burglary.
A house in Watford Road in Radlett was raided between 6.35pm and 7.52pm on New Year's Eve (December 31 2021).
Hertfordshire Constabulary says jewellery was stolen including a distinctive pocket knife pendant and an emerald ring.
PC Abigail Devane, who is investigating, said: "I’d like to hear from anyone who witnessed this incident or has information about it. Have you seen the items in the images or been offered them for sale?
"In addition, three people wearing hoods were spotted in the area at the time of the incident and we’d like to identify them.
"If you are able to help, I can be contacted via email at abigail.devane@herts.police.uk."
Information can also be reported online at herts.police.uk/report or on 101, quoting crime reference 41/20/22.
Or contact Crimestoppers anonymously on 0800 555 111 or via crimestoppers-uk.org.
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