Something rare and very valuable; specifically the Jade of Mr. He and the Pearl of Marquis Sui. This idiom refers to extremely precious treasures. Reference is made to the jade described in [[和氏璧|和氏璧|he2 shi4 bi4]] and the pearl described in [[隋侯之珠|隋侯之珠|sui2 hou2 zhi1 zhu1]].