Items including luxury watches and an engagement ring were stolen from a house in Bexhill.
The house in Mayo Lane was burgled between 8.20am and 2.50pm on Wednesday (June 25).
A number of items were stolen including a platinum and diamond engagement ring, a platinum wedding band, a ladies' silver and blue TAG Heuer watch, a men's silver and blue TAG Heuer watch and a pair of black Chanel sunglasses that were in a black and gold lettered Chanel case which was also stolen.
Sussex Police has launched Operation Magpie to tackle burglary across the county.
Anyone with information is asked to call 101 or email email@example.com quoting serial 892 of 25/6.
Alternatively, call the independent charity Crimestoppers anonymously on 0800 555 111.