Early production Diamond chair in white and black painted metal with black leather pad. The Bertoia Diamond Armchair, one of the most iconic designs by Harry Bertoia, who was not only a furniture designer but also a sculptor. Diamonds are forever! This famous Diamond chair was designed by Harry Bertoia in the 1950s. Produced by Knoll International in the USA. The diamond chair 421 is the most special and successful piece of furniture that Bertoia has ever designed. This black and white metal armchair is a real eye-catcher, it also has a comfortable seat. With some signs of age and use as to be expected, there are some parts of the metal coating that have come loose, only adding to the vintage charm of this fabulous chair! Please see the fotos as part of the description and for a good impression of the condition.