It was announced on December 20, 2021 that the Japanese birthstones were reviewed for the first time in 63 years and 10 new gemstones were added. With this addition, the total number of birthstones in Japan has increased to 29.

Birthstones vary from country to country (including some birthstones used overseas).We have listed the most representative ones. For reference, the birthstones of the world are listed below.
It's interesting that there are many birthstones in one month.