Most months make the birthstone conversation simple. April has diamond. July has ruby. But August is different. Instead of being defined by one signature stone, August stands out as one of only two months with three official birthstones: peridot, spinel and sardonyx.
That gives the month a more layered story to tell, one that is not about choosing a single winner, but about understanding how three very different gemstones can each represent August in their own way. And if you're shopping for an August birthday or looking to treat yourself, that added meaning can help you think more carefully about the color, style and symbolism that feel most personal.
So instead of listing three sets of facts and letting you sort it out, we want to walk you through what actually makes these three birthstones so different from each other, and how to know which one you're really shopping for.
Choosing the August Birthstone That Feels the Most Personal
Here at The Bradford Exchange, we see birthstone jewelry as more than a way to mark a month. We see it as a way to create something meaningful to the person wearing it. That feels especially exciting for August, a month with three birthstones, each with its own color, character and history. Peridot is the stone most often associated with August birthstone jewelry today, while spinel and sardonyx add even more depth to the month's story. So the question is not simply which stone represents August best. It is how the meaning, look and personality of each stone can help guide you toward a piece that feels right.
Three Different Birthstones, Three Very Different Personalities
Peridot is the August birthstone people tend to recognize first, and its color has a lot to do with that. While many gemstones shift across a wide range of shades, peridot stays close to its signature green - bright, clean and unmistakably itself. There is something refreshingly direct about that. It does not ask you to search for its character. You see it right away, which makes peridot feel like a natural fit for someone who appreciates jewelry with clarity, color and a strong sense of personality.
Spinel, however, brings a different kind of intrigue to August. For centuries, some of history's most famous "rubies" were later discovered to be spinel, which means this gemstone spent a long time being admired under another name. That gives spinel a story that feels surprisingly modern: a stone finally recognized for its own beauty, depth and confidence. In black spinel especially, that confidence becomes bold and polished, with a deep, high contrast look that feels less expected than traditional birthstone jewelry, but no less meaningful.
And sardonyx? Sardonyx is the one that brings the most history into the August birthstone story. With its layered bands of warm reddish-brown, white and darker tones, sardonyx has been used for centuries in carved seals, cameos and signet rings. Its appeal is not about sparkle in the usual sense. It is about heritage, craftsmanship and the feeling of something made to carry meaning over time. Even if sardonyx is less common in modern jewelry designs, it adds an important sense of depth to August, reminding us that a birthstone can be personal because of the story behind it, not just the way it shines.
Compare Peridot, Spinel and Sardonyx at a Glance
If you're trying to decide which August birthstone feels right for yourself or as a gift, this quick comparison can help you match each stone's look, meaning and personality to the person who will wear it.
How to Think About August Birthstones When Shopping
"Do I actually have to pick just one?"
Not at all. As mentioned, August has three official birthstones, but that does not mean they appear equally often in today's jewelry designs. Peridot is the stone most often associated with August birthstone jewelry, while spinel offers a bolder, less expected option, and sardonyx adds history to the month's story. Rather than looking for one "right" stone, focus on the color, meaning and style that feel most personal, and it is definitely fine to embrace all three.
"Isn't peridot a little too summery to feel special any time of the year?"
We'd respectfully push back on that. Peridot's bright green reads as fresh, not fleeting - and unlike a lot of "seasonal" colors, it doesn't feel dated once summer ends. Our Viridian Dream Ring, designed by acclaim fashion designer Bob Mackie, is a good example of how that green can carry real weight: a genuine 2-carat peridot center stone surrounded by 38 white topaz gems, in a design meant to be worn well past August. The Garden Opulence Pendant Necklace offers another way to see peridot's appeal, pairing its vivid green color with white topaz in a look that feels graceful, feminine and easy to wear. The color isn't the limitation people assume it is. It's the whole appeal. And you'll discover peridot pendants, peridot rings and peridot bracelets that bring this precious stone to vivid life in a way that works no matter the time of year.
"Black spinel versus a colored stone - how bold is too bold?"
That depends less on the stone and more on how it's set. A single black spinel in a simple setting reads as sleek and modern, not loud. Our Black Velvet Ring makes that case well: a cushion-cut genuine black spinel center stone, flanked by two cushion-cut white topaz, with a pavé of additional black spinel carried along the solid sterling silver band - over 2.5 carats of genuine gemstones total. The white topaz keeps it from reading as heavy, and the black spinel does the rest of the talking. It's bold without needing to raise its voice.
"What if the birthstone I want doesn't have jewelry built around it?"
This is worth naming honestly: sardonyx does not show up in fine jewelry nearly as often as peridot or spinel do. But that does not make it less important to August. Its long history in carved seals, cameos and signet rings gives the month a deeper sense of heritage and symbolism. If sardonyx is the birthstone that matters most to you, it may be helpful to let that meaning guide the kind of piece you choose: something personal, lasting and rich with story.
How a Stone Is Set Changes What It Says
The way a stone is cut and arranged does as much emotional work as the stone itself. A single, cleanly set center stone can read as clear and confident, the kind of piece that doesn't need to compete for attention. Designs that pair a bold center stone with smaller accents can feel more layered and dramatic, built to catch the light from more than one angle.
Neither approach is "more" or "less" - they're just saying different things. Knowing whether you want a piece that states its case quietly or one that makes more of an entrance is often the fastest way to narrow down a decision.
Fine Jewelry Designs: What We've Learned
After decades of creating artful jewelry designs, we've learned that most birthstone shoppers aren't just choosing a mineral. They're choosing a way to say something about a specific person, on a specific day. A stone's color, setting and symbolism all work together to create a piece that feels connected to someone's story, and that is the job we take seriously.
What You're Really Choosing in August
Underneath all of it - the green-versus-black question, the bold-versus-quiet question, the meaning-versus-style question - August is really asking you to know the person you're shopping for a little better so you can shop with ease. Confident and clear, unexpected and bold, or steeped in history: that's a wider range than a single birthstone usually offers, and that makes August such an exciting month.
If you found today's article on August birthstones helpful, be sure to check out some of our other recent birthstone posts:
January's Birthstone: The Beauty and Meaning of Garnet
May's Birthstone: The Beauty and Meaning of Emerald
The Hidden Meaning Behind Amethyst: February's Birthstone
The Meaning and Allure of April's Birthstone: Diamond]
Whether you're looking for a meaningful gift for yourself or someone special, you can explore our full selection of jewelry and watches, where you'll find rings, necklaces, bracelets, watches and other artful designs made to celebrate personal style, special moments and the people who matter most. Thanks so much for reading!
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