Caillette was rigorous in his approach to developing and prototyping designs.

He was always committed to simplicity of line, and was innovative in use of materials.

Caillette remained fond of wood.
He said, "I am the son of a cabinetmaker, and I still remember the smell of wood shavings in the workshop of my father."

He said, "I consider design to be wanted, determined, thoughtful, and assertive."

His 1958 Diamond chair was manufactured by Steiner.
Caillette said of this signature design, "It is the most pure and the most easy to fabricate of my models in molded plywood.
I designed it with a piece of cardboard, telling myself that if the cardboard could fold, then so could wood."

The Diamond chair has been called an icon of French modernism.
It was awarded the gold medal at the 1958 international EXPO in Brussels.
Caillette was rigorous in his approach to developing and prototyping designs.
He was always committed to simplicity of line, and was innovative in use of materials.
Caillette remained fond of wood. He said, "I am the son of a cabinetmaker, and I still remember the smell of wood shavings in the workshop of my father."
He said, "I consider design to be wanted, determined, thoughtful, and assertive."
His 1958 Diamond chair was manufactured by Steiner. Caillette said of this signature design, "It is the most pure and the most easy to fabricate of my models in molded plywood. I designed it with a piece of cardboard, telling myself that if the cardboard could fold, then so could wood."
The Diamond chair has been called an icon of French modernism. It was awarded the gold medal at the 1958 international EXPO in Brussels.
René-Jean Caillette