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Officers reckon the jewellery could have been stolen from the East Midlands.
The jewellery has been valued at £26,850 and could have been stolen from Derbyshire, Nottinghamshire, Leicestershire or Lincolnshire.
- A silver and diamond bracelet
- A silver and diamond ring
- A pair of silver and diamond earrings
On October 1 2010, Derbyshire police arrested a 22-year-old woman and a 28-year-old man, both from Notts, at the Giltbrook Retail Park under the Proceeds of Crime Act.
Investigations have revealed that a silver Breitling watch the man had taken off him, had been taken during a jewellery shop robbery in Nottingham in September 2008.
Anyone who can help officers identify where the jewellery has come from should call PC 2259 Hyde on 0345 123 3333 or Crimestoppers on 0800 555 111.