The 18th-Century novel The Dream of the Red Chamber describes how Chia Paoyu was born with a piece of lustrous jade in his mouth, while Hsueh Pao-chai wore around her neck a "golden chain of longevity." These should have fated them to be joined in a "blessed union of gold and jade."
《紅樓夢》記載賈寶玉生來口含一塊潤玉，和薛寶釵項上的「長命金鎖」，本應成就「金玉良緣」。