Holy Grail in a 3D Medieval Castle

Ultra-detailed photorealistic 3D render of the Holy Grail: a gleaming gold chalice with emerald inlays and a soft halo, resting on a carved marble pedestal in a grand medieval castle hall. Surrounding architecture features towering stone arches, vaulted ceilings, banners, and suits of armor. Warm torches flicker along the walls while a beam of sunlight filters through a stained-glass window, casting color onto the Grail. The polished marble floor reflects the scene; add subtle fog, floating dust motes, and volumetric lighting for atmosphere. Cinematic composition with a low-angle camera, 35mm lens, shallow depth of field, high dynamic range, global illumination, and physically based materials.