AurigastonesFind your stone

Birthstone

October Birthstone

The October birthstone is opal — the iridescent gem that flashes every color at once — paired with the rainbow-rich tourmaline as its modern alternate.

By The Aurigastones Editors

Birthstone
Opal, Tourmaline
Month
October
Zodiac
Libra, Scorpio

The October birthstone: Opal & Tourmaline

Opal, the birthstone for October, is famous for its play-of-color, a shimmering dance of rainbow hues that seems to shift as the stone moves. Ancient peoples thought opal contained the fire of lightning or fragments of every other gemstone. Tourmaline, its modern alternate, occurs in a wider range of colors than almost any other gem, sometimes showing several hues within a single crystal.

October birthstone color & meaning

Opal can appear milky white, fiery orange, or deep black, all alive with flashing internal color, while tourmaline spans pink, green, blue, and the famous watermelon variety. Both stones celebrate creativity, individuality, and emotional expression.

  • Opal symbolizes hope, creativity, and inspiration
  • Tourmaline is associated with healing and emotional balance
  • Both represent individuality and self-expression

Who should wear the October birthstone

October-born Libras and Scorpios wear opal for its imaginative, color-shifting beauty, with tourmaline offering a more durable alternative. Harmony-loving Libras adore opal's gentle rainbow play, while intense Scorpios are drawn to tourmaline's bold colors. Either makes a vivid, expressive birthday gift.

Shop October birthstone jewelry

  • Opal Birthstone Necklace — An October birthday in gemstone form. Shop →
  • Opal Ring — Flashing color, worn daily. Shop →
  • Personalized Birthstone Bracelet — Stack the whole family's stones. Shop →

We may earn a commission from these links, at no cost to you.

Frequently asked questions

What is the October birthstone?+

The October birthstone is opal, an iridescent gem of many colors, with tourmaline as a modern alternate.

What color is the October birthstone?+

Opal flashes a play of many colors, while the alternate tourmaline comes in pink, green, blue, and more.

What is the alternate October birthstone?+

Tourmaline is the modern alternate birthstone for October, prized for its enormous range of colors.

Keep exploring

Your weekly dose of cosmic guidance

Moon rituals, crystal wisdom, and your stars — straight to your inbox. Free birthstone guide when you join.

Crystal and gemstone meanings are traditional and metaphysical, offered for spiritual and educational purposes — not medical advice.

← Back to birthstones