Article 11 of the Saudi Precious Metals and Gemstones Law

Selling gemstones, displaying them for sale or possessing them for sale is prohibited unless they are accompanied by a written declaration from the person concerned stating:

• The name of the stone.
• Its type.
• Its weight.
• Its color.
• Its quality level in terms of: degree of purity, its properties, and freedom from breakage and scratches.
• Identification of any other defects.

This means that a stone offered for sale is accompanied by a written statement from the person concerned with these details, so the buyer knows exactly what he is buying. Note that the formal wording of the text uses a term meaning "decision" for the written document; what is meant is the written statement the person concerned issues about the stone.

This article connects to Article 12, which permits holding exhibitions of precious metal articles and gemstones under a license from the General Authority for Exhibitions and Conferences in coordination with the Ministry of Commerce, and permits exempting exhibits from hallmarking and some other procedures where the intention is display only, as the regulations specify. Before it is Article 10 on the hallmark marks of factories and workshops. Anyone who bought a gemstone that turns out to differ from the written details may consult a lawyer specializing in commercial cases.