what is september birthstone

The modern September birthstone is sapphire, best known in its deep, rich blue color.

Quick Scoop

• Primary birthstone: Sapphire, a variety of the mineral corundum.

• Typical color: Deep royal blue, though sapphires can appear in many colors except red.

• Symbolism: Wisdom, loyalty, truth, sincerity, and protection.

• Traditional vs modern: Modern lists give September a single main stone (sapphire), while older traditions sometimes also mention lapis lazuli.

A tiny story angle

For centuries, royalty and clergy wore blue sapphires as a sign of divine favor and protection, believing the stone kept them safe from harm and envy. Today, that same gem shows up in everything from classic engagement rings to minimalist birthstone necklaces for anyone born in September.

TL;DR: If you’re wondering “what is September birthstone” for jewelry, horoscopes, or gifts, the answer is sapphire—usually imagined as a vivid blue stone symbolizing wisdom and loyalty.

Information gathered from public forums or data available on the internet and portrayed here.