On 4/10/19, at approximately 8:00 p.m., three subjects entered a jewelry store dressed in all black. They wore masks and were armed with handguns. The subjects ordered everyone to get on the ground. They then began smashing display cases with a hammer. One of the subjects grabbed a female employee by her hair, pulled her up and put a gun to her back. The subject led the employee to a safe. Once in the vault, the subject told the victim to open the safe or he was going to kill her. The subjects grabbed several loose diamonds and then fled from the store. One of the subjects wore a black mask with a “joker smile” while another wore a red and black skull cap and white pants. If you have any information regarding these subjects, please call the Jewelers’ Security Alliance at 212-687-0328.