Burglars stole two rings and a quantity of cash after breaking into a property in Cromford through a front window.
The house, in Barnwell Lane, was targeted between 9am on Monday, March 3 and 10.30am the following morning.
The offenders smashed a window to get inside and searched the property, taking cash and jewellery.
A 9ct gold ring with an opal stone and sapphire surround was stolen, along with an 18ct white gold engagement ring with a sapphire stone surrounded by diamond chips.
Police are appealing for anyone who might have seen someone acting suspiciously in the area to call them on 101.
Witnesses can also call Crimestoppers, anonymously, on 0800 555 111.