The thieves brought a bag containing 445 grams of gold jewelry into Joyeria El Ruby and said they needed to sell it because of a family emergency. The gold was weighed and inspected and then surveillance video shows one of the men distracting the clerk while the other swapped the items for a bag of fake gold.
The video shows one of the men putting the cash into his pockets and the two men walking away, KMGH-TV, Denver, reported Tuesday.
Myrna Munoz, whose family owns the store, said the jewelry weighed and looked the same. It wasn't until the men were gone that they realized something wasn't right. She said she suspects the men have pulled the same scam at other jewelry stores.
Police have not reported any leads in Saturday's theft, the news station said.