A single, oval-shaped, smooth stone with a soft, matte surface. The stone is rendered in a pale, natural gray with subtle variations and speckles, giving it a realistic, tactile appearance. It casts a diffuse shadow to its left and slightly below, anchoring it to the surface.
A vivid, electric blue streak running diagonally from the lower left (behind the stone) to the upper right edge. The streak is sharply defined at its core but feathered and broken at the edges, with digital or painterly pixelation and brush marks, especially near the center. The blue appears to interact with the surface, as if painted or digitally imposed, partially transparent in areas.
A soft, diffuse shadow cast by the stone, rendered in a muted gray-brown. The shadow is oval, slightly elongated to the left and downward, with feathered edges that blend into the background.