Diamond thief on the run after nabbing 5ct diamond from Sydney’s CBD

A diamond thief is on the run after stealing an unset five-carat diamond from a luxury jewellery store in Sydney’s CBD.

Police said the man entered the store in Martin place about 10.00am on Tuesday and asked to view a five-carat diamond.

He then allegedly swapped the diamond for a stone that looked similar, but of much lesser value, and left the store.

After noticing the stones had been switched, store employees contacted police.

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CCTV of a man who may be able to assist with inquiries has now been released.

The man depicted in the footage is described as being of Asian appearance with a slim build, and with short black hair.

He is shown wearing a grey jumper, dark-coloured pants, black Nike-brand sneakers, and carrying a shoulder bag.

Anyone with information in relation to this incident is urged to contact Crime Stoppers on 1800 333 000.