We have to give it to Cartier. When we heard they were reopening their Fifth Avenue mansion during New York Fashion Week we were worried the catwalk shows would eclipse its grand ceremony. Boy, were we wrong.

With a host of  major celebrities including Sienna Miller, Katie Holmes, Rooney Mara, Uma Thurman, Chloe Grace Moretz and our fave fashion icon of all time Iris Arfel, the reopening of the Cartier Fifth Avenue store left NYFW in its shadows – this was the party of the new fashion season.

The event was show-stopping with the store truly transformed into a manison complete with a kitchen, living room, dance floor and art spaces. Cartier bellmen ensured the A-list guests – many of which were dripping in Cartier jewels – had a smooth entry to the party, blocking off the crosswalk for easy access.

Of course, no party is complete without some chart-topping entertainment and that came in the form of Chloe and Halle (newish band who have a fan in Beyonce) and British singer Ellie Goulding.

Check out our gallery for a full insider look inside New york Fashion Weeks biggest and most dazzling party.

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