A hyper-realistic 3D rendering of a glass skull with intricate facets, illuminated by an ethereal blue light that permeates through its translucent form. The skull emits a mesmerizing glow against a pitch-black backdrop, enhancing its mysterious and otherworldly appearance. Rendered with the advanced Octane engine, the image captures stunning details and reflections, giving it a sleek, sci-fi ambiance. Subtle hints of violet and turquoise shimmer within the glass, adding depth and complexity to the luminous spectacle.