A man posing as a customer took off with three gold chains, worth about $10,000, from a pawn shop in Marsiling over the weekend.
It happened around 2.20pm on Sunday at Xin Tai Long pawn shop at Block 19, Marsiling Lane.
A 30-year-old shop assistant, who wanted to be known only as Ms Chong, said the man was wearing a yellow baseball cap and the blue uniform worn by workers of the Sheng Siong supermarket chain.
She also told The Straits Times that he appeared to be in his 20s. He told her his friend had bought a gold necklace priced at more than $5,000, and he wanted to buy something similar for himself with the bonus he had just received from his company.
Ms Chong reached into the display case and took out three chains for him to choose from. Their prices ranged from about $2,000 to $4,000.
After talking a while about the designs and prices, he suddenly turned and dashed out of the shop with the chains.
"He was so fast when he turned," recalled Ms Chong. "I was so shocked, but I told myself I had to catch him.
"I immediately chased after him and shouted for help while running."