Jewelry IdentifierBirthstone
September Birthstone
September's birthstone is sapphire, the corundum gem best known in royal blue but found in almost every color.
Sapphire
Mohs 9Blue corundum is classic, but sapphire also comes in pink, yellow, green, and orange (padparadscha).
- Modern birthstone
- Sapphire
- Traditional / alternates
- Lapis lazuli
- Color
- Blue
If you were born in September, your birthstone is sapphire — blue corundum in its classic form, though it also occurs in pink, yellow, green, and the rare pink-orange padparadscha. At 9 on the Mohs scale it's second only to diamond in hardness.
What the September birthstone means
Sapphire symbolizes wisdom, loyalty, and nobility — long associated with royalty and clergy.
Is your September birthstone real?
Birthstones are among the most-imitated gems — sapphire especially is often simulated by glass or synthetics. The fastest way to check what you actually have is to photograph the stone and run it through the free Gemstone Identifier, then confirm whether it's natural with the Is It Real? tool. For what a piece is worth, get a free jewelry appraisal.
Frequently asked questions
Birthstones by month
Not sure if your sapphire is real?
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