The iconic Avenue Collection is inspired by Fifth Avenue and captures the style and architecture of New York, home to the very first Harry Winston Salon.. http://engagementringsblog.net/harry-winston-engagement-rings/ Harry Winston Engagement Rings. The first time I was lucky enough to view Harry Winston’s dazzling collection of engagement rings, it was in New York in 2009 when I was grading diamonds.. Cutting, polishing, and design are done in Winston's building on 5th Avenue, Ny, United states of america. Using a Harry Winston engagement rings , you and your girl love are deeply assured of the good quality that is available.. . .