New video shows a trio of armed robbers who held up a jewelry store in the heart of Manhattan’s Diamond District in a brazen stickup on Sunday afternoon.

The 14-second footage from surveillance cameras inside Midtown’s Avianne and Co. shows the crooks tossing a duffel bag and tying up the store’s workers in a back room, which has at least a dozen bottles of champagne and alcohol displayed on the wall.

The hat-wearing bandits, who had walked into the West 47th Street store posing as customers, snatched diamond-studded chains and watches in the display cases and safes, according to cops.

Avianne and Co. caterers to hip-hop heavyweights with showy pieces and advertises itself as “leading celebrity jewelers” who have a high-end clientele, including Lil Wayne and Nicki Minaj.

It was still unknown Monday morning how much was taken in the Hollywood-like heist.