October Birthstone
The birthstones for October are Opal, Tourmaline. Below: photos, key properties, and how to tell the real thing apart.
October birthstone colour
The October birthstone is Opal (white), Tourmaline (black). Remember a single species can occur in several colours and may be heat-treated or dyed, so use colour as a starting point and confirm with hardness and lustre — tap any stone below for its full identification guide.
Frequently asked questions
What is the birthstone for October?
The October birthstone is Opal (modern) and Tourmaline.
What colour is the October birthstone?
The October birthstone is Opal (white), Tourmaline (black). The same stone can come in more than one shade, so colour alone won't confirm it.