According to Japanese mythology, the jewel was made by Tamanooya when Iwato-gakure (the hiding of Amaterasu Omikami, the sun goddess, in the heavenly rock cave) happened, who was the deity from which Tamasuri no muraji descended.
日本神話では、岩戸隠れの際に後に玉造連の祖神となるタマノオヤが作った。