create an ultra realistic photorealistic render of the exact shank shown in the original archicad model the shank is covered with a smooth flat stone effect material imitating natural stone the stone surface should have a subtle and fine texture not rough heavily embossed or deeply textured the top surface is cream colored with a smooth matte finish strictly preserve the exact original archicad model do not change the dimensions proportions geometry shape thickness edges positioning openings or any other design details make only the materials and lighting look realistic the stone effect finish should have realistic natural stone appearance subtle fine variation soft reflections and realistic matte roughness while remaining visually flat and smooth use a corona renderer style photorealistic look with realistic global illumination ray tracing natural soft shadows accurate material reflections and professional product photography lighting the final render must be sharp clean highly detailed and crystal clear with no blur and no exaggerated depth of field important do not add or remove anything do not change the design dimensions colors or proportions do not add handles decorations led lights furniture accessories or any elements that are not present in the original archicad model only make the existing shank look realistic
