metal ring sculpture 3d model

A single premium industrial metal ring sculpture, thick seamless torus shape with a wide rounded band, dark gunmetal finish, realistic brushed and subtly hammered metal surface, fine micro-scratches and natural material imperfections, slightly irregular handcrafted edges, solid heavy construction, minimalist contemporary design. The ring stands upright at a slight diagonal tilt, centered as an isolated object. Clean topology, physically accurate metallic PBR material, detailed roughness and normal maps, photorealistic, production-ready 3D asset. No gemstones, no engravings, no text, no logo, no stand, no background objects.