Thieves got away with Asian gold and a diamond necklace after burgling a Chadwell Heath home.
The house in Fields Lane Crescent was ransacked in just 20 minutes, between 3.20pm and 3.45pm on June 20.
Police would like to speak to four men seen in the area to eliminate them from inquiries.
One is described as black with a beard. He was riding a black moped and wearing a black helmet.
The others were three Asian men seen in a red Ford Fiesta.
The value of the gold taken is unknown.
Anyone with information is asked to contact Det Sg Matt Day at Ilford Burglary Squad on 020 8345 2680 or Crimestoppers on anonymously on 0800 555 111.
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