Transparent rough diamond in dirty miner's hands on dark rock

A rough, dirty miner's hand holds a transparent, irregularly shaped raw diamond, reflecting light. The diamond rests partly on a dark, textured rocky surface, possibly coal or ore. The background is predominantly black, creating a dramatic contrast and focusing on the stone's brilliance. Lighting emphasizes the diamond's facets and skin texture, conveying an atmosphere of hard work and valuable discovery. Predominant colors are shades of gray, black, and the iridescent sparkle of the diamond.