Why Does August Have 3 Birthstones?
August is a unique month in the birthstone calendar. It features a trio of gems: Peridot, Spinel, and Sardonyx. Each gemstone tells its own story—of sunlight, fire, and ancient earth—mirroring August’s position between the fiery peak of summer and the mellow dawn of fall.
What Gemstones Represent August?
The official birthstones for August are:
- Peridot – the original birthstone since 1912.
- Spinel – officially added in 2016 by the Jewelers of America.
- Sardonyx – historically recognized in European traditions.
The Origins of August's Trio
From Biblical symbolism to royal regalia, the association of birthstones with months has evolved over centuries. August’s variety reflects cultural shifts, mineral discoveries, and the evolving preferences of both jewelers and consumers.
Peridot – Stone of the Sun
Beloved in ancient Egypt and found even in meteorites, Peridot glows with a fresh yellow-green hue. It symbolizes protection and renewal.

Spinel – The Underrated Spark
Once mistaken for rubies, Spinel now shines in its own right with vibrant hues from pink to cobalt blue. It represents rejuvenation and creativity.

Sardonyx – The Ancient Guardian
A layered agate with white and red bands, Sardonyx was revered by Roman warriors and Renaissance mystics. It brings emotional grounding and clarity.

Why Three Birthstones?
- Historical Layers: Sardonyx reflects ancient traditions, Peridot modern standards, and Spinel recent gemstone recognition.
- Scientific Advances: Gemological breakthroughs allowed Spinel to be properly identified and valued.
- Market Flexibility: Offering stones at different price points and styles widens appeal to modern consumers.
How to Choose Your August Stone
Gemstone | Ideal For | Meaning | Recommended Style |
---|---|---|---|
Peridot | Nature lovers, energy seekers | Hope, cleansing, warmth | Leaf pendant or stacking ring |
Spinel | Trendsetters, collectors | Creativity, resilience | Solitaire ring or drop earrings |
Sardonyx | Traditionalists, vintage lovers | Stability, grounding | Cameo pendant or bead bracelet |
Fun Facts
- NASA discovered Peridot crystals in comet dust.
- Spinel appears in British royal regalia but was long mistaken as ruby.
- Sardonyx was used in ancient Roman seals and cameos.
✨ Which gemstone would you choose to represent your August spirit? Tell us in the comments!