November 22 – December 21 · Fire

Sagittarius birthstones

Sagittarius carries Turquoise and Topaz in the zodiac tradition.

Turquoise

Composition Hydrated copper aluminium phosphate (CuAl₆(PO₄)₄(OH)₈·4H₂O)
Hardness · System 5–6 · Triclinic

Porous enough to absorb oils and change colour over years of wear — some cultures read that shift as meaningful.

Traditionally the classic travel-protection stone, also linked to plain speech.

Topaz

Composition Aluminium fluorosilicate (Al₂SiO₄(F,OH)₂)
Hardness · System 8 · Orthorhombic

Nearly all blue topaz on the market began as colourless stone, irradiated and heated to produce the colour.

Traditionally linked to confidence, clear intention and honest self-assessment.

Sign or month?

Sagittarius runs November 22 – December 21, which crosses two calendar months — so the zodiac stone and the monthly birthstone may or may not agree depending on your exact date. Neither system overrules the other; the zodiac one is simply older.

Compare against the monthly chart →

← All zodiac birthstones