Suspension luminaire providing diffused lighting. Hemispherical, mechanically-processed cast plaster diffuser, painted white inside. Outer finish: rust, glossy black, glossy white or matte gold. Plaster diffuser support in die-cast aluminum alloy. Upper cable gland and blocking ring nut in black injection-molded PC. Shaped, adjustment screws. Transparent, injection-molded, upper and lower silicone shock absorbers. Lampholder and fixing support in PPS.