The incident happened at a house in Millhouse Dale in Antrim on Wednesday, April 3.
Detective Sergeant Colin Gray said: “The residents returned to their home at around 2.45pm yesterday afternoon and found that their front door had been kicked.
“A male then ran from the property.
“Inside they discovered the house had been ransacked and a quantity of jewellery and cash taken.
“We are appealing for anyone with information who may have witnessed any suspicious activity in the area or have information about the incident to contact detectives at Antrim on 101 quoting police reference 830 03/04/19.”
Or, if someone would prefer to provide information without giving their details they can contact the independent charity Crimestoppers and speak to them anonymously on 0800 555 111.