As long as 1300 years ago, The New History of the Tang Dynasty recorded that Tibetans liked to wear dZi beads, "a single one of which could be traded for a horse." From this you can see the high value that was placed on them.
早在一千三百年前，《新唐書》裡就記載藏人喜歡戴「舍舍珠」（天珠的藏文音譯為 dZi），「一珠可易一良馬」，天珠的珍貴，由此可見。