Harry Bertoia

Harry Bertoia (1915–1978) was an Italian-American sculptor and designer whose career crossed freely between fine art and industrial production. Born in Arzene in the Friuli and trained at the Cranbrook Academy of Art in Michigan, he worked alongside Charles and Ray Eames before joining Knoll, for whom he produced the Diamond Chair in 1952 — a wire shell structure that became one of the most recognised seating designs of the twentieth century.

Bertoia himself said the Diamond was "made of air": the chair's primary material was the space inside the wire lattice. After Knoll, Bertoia devoted himself almost entirely to sculptural work in metal, producing large-scale sound sculptures — sonambient works — that continue to be exhibited in museums worldwide. Vintage Bertoia pieces for Knoll remain among the most collected American design objects.

Frequently Asked Questions

How do I identify an original Harry Bertoia Diamond Chair?

Original Knoll production Bertoia chairs carry the Knoll Studio label or early Knoll Associates label, depending on the period. The wire gauge, weld quality, and base configuration differ between original and reproduction pieces. A specialist can assess authenticity from photographs.

Does Collectors Network offer original Harry Bertoia designs?

Yes. Collectors Network sources original Bertoia pieces — Diamond chairs, side chairs, and occasional tables — from European private collections. All items are assessed for originality and condition. Contact us or browse our current selection above.