An iconic “Sigma” ceiling or wall light designed by Sergio Mazza for Artemide in the 1960s, a refined expression of Italian modernist lighting and one of the most recognizable designs from Artemide’s early production.The fixture is defined by its pure circular geometry and by the extraordinary molded pressed-glass diffuser, finely worked with a dense radial pattern. Once illuminated, the glass comes alive, transforming the light into a warm and atmospheric glow while creating a striking sunburst effect that changes subtly according to the viewing angle.The diffuser is embraced by a refined frame in nickel-plated brass, whose understated presence enhances the purity of the silhouette. Small cylindrical retaining pins punctuate the perimeter with precise industrial detail, becoming a distinctive visual signature and subtly revealing the fixture’s construction.Behind the glass, the internal reflector is designed to maximize and distribute the light efficiently, allowing the textured diffuser to produce a soft, enveloping illumination without glare.The Sigma was conceived as a versatile fixture and can be installed either as a ceiling light or as a wall sconce. Used individually, it becomes an elegant luminous accent; arranged in multiples, it creates a rhythmic architectural composition with a strong decorative presence.Its compact yet sculptural proportions make it suitable for hallways, bedrooms, living areas, entrances, bathrooms, or hospitality interiors. Even when switched off, the fixture retains the presence of a refined wall object, while illuminated it reveals the full depth and sophistication of Mazza’s design.This example is preserved in very good vintage condition. The pressed-glass diffuser remains well preserved, while the nickel-plated brass frame shows an attractive age-related patina and light traces of use consistent with its history.A timeless and highly collectible lighting design that perfectly reflects Sergio Mazza’s ability to combine technical precision, elegant materials, and atmospheric light.The fixture is preserved in very good vintage condition, with a beautiful age-related patina to the nickel-plated brass and only minor signs of use consistent with its age. We recommend professional rewiring for safe operation and compliance with contemporary local electrical standards.