What geometric shape is the central Renault logo known for?

The central geometric shape of the Renault logo is a diamond.

Renault introduced a diamond-shaped emblem in 1925, replacing earlier designs that had used circular and more illustrative forms. The diamond was a practical choice for vehicle grilles because its shape could fit neatly into the center of a grille and remain recognizable from a distance. Renault’s later badges refined the form through different colors, outlines, and three-dimensional treatments.

The design is sometimes called a lozenge, which is a geometric term for a diamond-like shape. Renault’s current identity still centers on this angular mark, although modern versions use a flatter, interlocking-line interpretation rather than a solid traditional diamond.

Renault should not be confused with Mitsubishi, whose three-diamond emblem has three separate rhombi. Renault’s signature is a single upright diamond associated with the French automaker.