The burglary took place at a house in Middleham market place between 6.30pm and 10pm on Wednesday 13 March 2013.
Police are appealing for witnesses to the break-in and to anyone who is offered the distinctive gold jewellery for sale to contact them.
One of the stolen items was a gold charm bracelet with eight charms, and four of the charms were engraved with boys and girls’ names and dates of birth.
Other items taken include a gold ring with five sapphires in a row, a gold ring with three small diamonds, a gold ring with a turquoise stone and pearls, a gold ring with heart shaped gold setting two diamonds and a small emerald, two gold wedding rings and a gold knot shaped ring.
Detective Constable Jason Roper of Northallerton CID, said:
Burglary is a distressing crime, particularly when sentimental and personal items are stolen. The charm bracelet is quite unique being personalised with the names of people close to the owner. I urge anyone who is offered these items for sale to contact the police without delay.
Detectives would also like to hear from anyone who saw any suspicious people or activity in Middleham on Wednesday night to contact them.
Anyone with any information is asked to call North Yorkshire Police on 101, select option 2 and ask for Northallerton CID.
Or, you can pass information anonymously to Crimestoppers on 0800 555 111, quoting reference number 12130041090.
Anyone who sees any suspicious vehicles, people or behaviour in their neighbourhood should not hesitate to contact the police or Crimestoppers. You could help prevent a crime or help the police to apprehend a criminal.
If you see a crime progress or your safety is threatened, always call 999.