The following list of birthstones, which is the one commonly used today, was adopted in 1912 by the American National Association of Jewelers, which later evolved into the Jewelers of America.

January February March April May June

Garnet Amethyst Aquamarine Diamond Emerald Pearl

July August September October November December

Ruby Peridot Sapphire Opal Topaz or Citrine Zircon