This is Ouroboros Ring that wraps around the Dumortierite In Quartz.
Ouroboros is the snake that swallows his tail.
Ouroboros, which has no beginning and no end, is regarded as a symbol of perfection, eternity, and immortality.
【material】 SV925
【stone size】 0.39in x 0.39in（10mm x 10mm）