A woman with dark hair, dressed in a yellow shirt and blue jeans, stands indoors, likely in a workshop or showroom. She is demonstrating the translucency of a rectangular block of stone, possibly onyx, by holding it up to a bare lightbulb hanging from the ceiling. The light clearly shines through the stone block. She appears engaged and expressive as she speaks, seemingly explaining the properties of the material. On a table in front of her, various stone objects are displayed, including decorative vases, small sculptures, a stone chessboard, and larger, rough-hewn stone pieces of different colors and textures. In the background, a large poster with the text "Sayan Onyx" is visible, along with what appears to be a work area containing more stone blocks and machinery. Exposed electrical wires run along the ceiling. The overall setting suggests a place where stone is worked with or sold.