One of the seven treasures possessed by the cakravartin king. It is often equated with or described as a wish-fulfilling jewel (yid bzhin gyi nor bu). It is additionally included as the thirty-third of the eighty designs found on the palms and soles of the Tathāgata. A passage about the precious jewel is found in Toh 95, The Play in Full, 3.9. See also Toh 4087, the Kāraṇa­prajñapti, folio 121.b.