September Birthstone Guide - Sapphire Jewellery for Birthdays
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Birthstone Guides
September Birthstone Guide
A detailed guide to the noble blue gem of royalty, truth, sincerity, and divine favour.
Meaning & Symbolism
The Stone of Heavens: Ancient Persians believed the Earth rested on a giant sapphire, and that its reflection painted the sky blue.
Royalty & Fidelity: Worn for centuries by kings, queens and clergy as protection against envy, betrayal and harm.
Wisdom & Peace: Linked to mental clarity, spiritual focus and steadfast devotion in love.
What It Is
Corundum Precious Gem
Sapphire is a gem-quality variety of corundum (aluminium oxide).
- Extremely hard: 9.0 on the Mohs scale, second only to diamond
- Forms in metamorphic and igneous rock
- Durable enough for daily, heirloom-grade wear
The Colour
Royal Blue & Beyond
Best known for a deep royal velvet blue, though fancy sapphires span nearly every colour.
- Blue comes from traces of iron and titanium
- Fancy shades include pink, yellow, teal, and the rare peach-pink Padparadscha
- Red corundum is classified separately, as ruby
Where It Comes From
Historic & Modern Mines
- Kashmir & Myanmar — the world's most coveted velvet cornflower blues
- Sri Lanka (Ceylon) — bright, highly transparent stones
- Madagascar & Australia — leading modern sources of fine blue and fancy sapphires
Why September?
Autumn Royalty
- Symbolises clear, crisp autumn skies
- Tied to September across ancient European calendars
- Standardised as September's official birthstone in 1912
MOHS HARDNESS: 9.0 5TH & 45TH ANNIVERSARY GEM CORUNDUM MINERAL FAMILY
Have a birthday to shop for this September? Browse our hand-curated sapphire and vintage gemstone rings.
Shop Gemstone RingsFine Jewellery & Gemology Reference Guide — September Birthstone Sapphire
