'天珠'英文點講

According to what I know 天珠 originated from the inner parts of China, supposingly close to Tibet. It was said that the monks had carved the the patterns onto the precious stone and then imbedded it with white powder (which was actually the bones of ancestors? maybe a myth), finally giving it a polish thus making it look very unique.

I have searched for any existing nomenclature, but nothing popped up.
Suggested names:
Tibetan Tribal Gem Stones - Tian Zhu

The right answer is "Dzi Bead"
for your reference :
http://www.aglowdzi.com/main.asp

"Dzi Bead"