Holidays at Cartier Mansion on 5th Avenue, NYC by Alex Carter Alex Carter Alex has written for Vanity Fair, Barrons, Bloomberg and Condé… Here’s the Cartier Mansion on 5th Avenue, NYC. The perfect Christmas gift. © Julie Skarratt 2011 Tags Cartier Christmas New York Alex Carter Alex has written for Vanity Fair, Barrons, Bloomberg and Condé Nast Traveler.