My Profile  |  Contact Us  |  Member Portal

Search
American Gem Society Logo

October Birthstones

Tourmaline and opal birthstones comes in a rainbow of shades and color combinations, giving October babies a variety of options.

Between tourmaline (whose color depends on trace elements in its chemical makeup) and opal (which diffracts light to show a play of multiple colors), October's birthstones offer a full spectrum of gemstones to suit anyone's personal tastes.

Opal

Opal

The name “opal” originates from the Greek word opallios, which meant “to see a change in color.”

More Overview

History
How to Buy
Tourmaline

Tourmaline

The name “tourmaline” comes from the Sinhalese words tura mali, which mean “stone of mixed colors.”

More Overview

History
How to Buy
US Map

Find a Jeweler

Search for an American Gem Society member jewelry store
Search
green diamond icon

Copyright © 2024 American Gem Society