Famous Designers & Icons

Diamond Chair

The Diamond Chair was designed by sculptor Harry Bertoia in 1952 for Knoll, as part of a collection of wire chairs that also included the Side Chair and Bird Chair. Bertoia, a metalworker and sound sculptor, created the Diamond Chair by welding chrome-plated steel wire rods into a wide, diamond-shaped shell that cradles the sitter in an open, airy form. Bertoia famously described his chairs as "mainly made of air, like sculpture—space passes right through them." The Diamond Chair's transparent, sculptural quality makes it unique among lounge chairs. Where most seating is opaque and solid, Bertoia's wire construction allows light and vision to pass through, creating a piece that occupies space without filling it. This quality makes it particularly valuable in smaller rooms and open plans where visual lightness is prized. Available with or without a seat pad, and in various finishes, the Diamond Chair remains one of Knoll's signature products—a piece that functions equally as comfortable seating and as three-dimensional art.

Key Characteristics

  • Welded steel wire rod construction
  • Diamond-shaped open shell form
  • Transparent—light and space pass through
  • Designed by a sculptor approaching furniture as art
  • Available with or without upholstered seat pad
  • Part of a complete wire furniture collection

Types & Variations

Full cover upholstered version
Seat pad only version
Unupholstered wire-only version
Chrome finish
White or black powder-coated finish

Common Materials

Welded steel wire rodsChrome platingKnoll textile seat padVinyl-coated wire optionFoam cushion insertStainless steel hardware

Placement & Usage Tips

The Diamond Chair's wide profile needs a generous corner or open area. Place it where its wire form can be silhouetted against a window or light wall for maximum sculptural impact. It pairs well with a simple throw blanket draped over the back for warmth and texture.

💡 Pro Tip

The Diamond Chair without a seat pad is essentially a room sculpture that you can sit in—display it where its wire form catches changing light throughout the day. With the full upholstered cover, it becomes a cozy, enveloping lounge chair. Both versions are equally valid expressions of Bertoia's vision.