September birthstone: Blue sapphire

September’s birthstone is the sapphire, described in gem lore as a symbol of truth, sincerity and constancy. The older list gave September the chrysolite, today called peridot.

Blue sapphire — Discipline and constancy; “truth, sincerity and constancy” in gem lore. Tradition says to try it for a few days before wearing it.

What the September stones symbolise

Symbolism comes from traditional gem lore. It is cultural, not a promise of any effect.

Your birth month is only one clue. Your full chart combines your birthstone with your zodiac, Vedic and Chinese signs and your numbers.

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Frequently asked questions

What is the birthstone for September?

The official modern September birthstone is blue sapphire (Jewelers of America / American Gem Society list). The older traditional list gives chrysolite (peridot).

Which zodiac signs are born in September?

September births fall under Virgo or Libra, depending on the day.

Other months

Official modern list	Blue sapphire
Traditional list	Chrysolite (peridot)
Old Hindu list (Kunz, 1913)	Zircon
Zodiac signs	Virgo · Libra