A high-quality crafting material with a smooth, polished surface, featuring a deep blue hue with subtle luminous veins that glow faintly, reminiscent of the night sky. The stone is cut into a perfect hexagonal prism, with each face displaying intricate, faintly etched runes that shimmer when viewed at an angle. Its edges are precision-cut, reflecting light to give it a celestial appearance, fitting for high-fantasy anime-inspired aesthetics.