Birthstones Chart. For more detailed information about dates and alternate zodiac birthstones, see zodiac chart ii and zodiac chart iii for pictures of birthstones for the star signs. For example, monday is ruled by the moon (moonday!), which is often associated with moonstone.
The traditional and modern birthstone charts fully agree when it comes to the stones designated as october birthstones: It is well connected to your own energies. Jewelers recognized the need for a streamlined birthstone chart by date, so in 1912, the modern chart became standard.