Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_77 ( hindu VARCHAR, us__1912_ VARCHAR )

### Question ###
In 1912 when the U.S used sapphire, what was the Hindu birthstone?

### Accurate SQL ###

SELECT hindu FROM table_name_77 WHERE us__1912_ = "sapphire"