Police are investigating the theft of a necklace from a business in the CBD last month.
Investigators have been told a man entered the jewellery store inside a shopping complex on Lonsdale Street at 1.24pm on Friday 7 June.
He approached a counter and spoke to a staff member, requesting to try on a gold chain which was valued at $22,000.
The staff member handed the man the necklace to look at, the offender immediately turned and ran out the door with it.
The man is perceived to be of middle eastern appearance, 178cm tall with a slim build and short dark hair, beard and moustache.
He was wearing an olive-green jacket, blue jeans, black and white sneakers and was carrying a black backpack.
Investigators have released images of a man they believe may be able to assist with their enquiries and images of the stolen necklace.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or make a report at www.crimestoppersvic.com.au.
