August Birthstone
The birthstones for August are Peridot, Spinel, Sardonyx. Below: photos, key properties, and how to tell the real thing apart.
August birthstone colour
The August birthstone is Peridot (green), Spinel (red), Sardonyx (brown). 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 August?
The August birthstone is Peridot (modern) and Spinel (modern) and Sardonyx.
What colour is the August birthstone?
The August birthstone is Peridot (green), Spinel (red), Sardonyx (brown). The same stone can come in more than one shade, so colour alone won't confirm it.