![Knoll International Diamond Chair, with cushion, Rilsan protective coating black, Vinyl black by Harry Bertoia, 1952 - Designer furniture by smow.com Knoll International Diamond Chair, with cushion, Rilsan protective coating black, Vinyl black by Harry Bertoia, 1952 - Designer furniture by smow.com](https://www.smow.com/pics/kn-028-000/knoll-intl-diamond-sessel-schwarz-vinyl-schwarz_zoom.jpg)
Knoll International Diamond Chair, with cushion, Rilsan protective coating black, Vinyl black by Harry Bertoia, 1952 - Designer furniture by smow.com
![139: HARRY BERTOIA, prototype Diamond chair < Design, 24 March 2016 < Auctions | Wright: Auctions of Art and Design 139: HARRY BERTOIA, prototype Diamond chair < Design, 24 March 2016 < Auctions | Wright: Auctions of Art and Design](https://www.wright20.com/items/index/2000/139_3_design_march_2016_harry_bertoia_prototype_diamond_chair__wright_auction.jpg?t=1456400380)
139: HARRY BERTOIA, prototype Diamond chair < Design, 24 March 2016 < Auctions | Wright: Auctions of Art and Design
![Knoll International Diamond Chair, with cushion, Rilsan protective coating white, Vinyl white by Harry Bertoia, 1952 - Designer furniture by smow.com Knoll International Diamond Chair, with cushion, Rilsan protective coating white, Vinyl white by Harry Bertoia, 1952 - Designer furniture by smow.com](https://www.smow.com/pics/kn-028-000/knoll-intl-diamond-sessel-weiss-vinyl-weiss_zoom.jpg)