The Bertoia Diamond Chair from Knoll was designed by Harry Bertoia in 1952. The armchair is part of Bertoia's popular collection of furniture made of sculpted steel mesh. The seat is made of welded, bent steel rods and is attached to a base with steel runners. The Bertoia Diamond Chair is available for both indoor and outdoor use.

Bertoia was best known as a sculptor and designed only one furniture collection. Although he did not primarily work as an interior designer, his furniture became highly regarded and is still sold all over the world today.