The August Birthstone Guide Peridot, Spinel, and Sardonyx
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Beyond Traditional Green: The Complete Guide to August’s Three Radiant Birthstones
When it comes to celebrating an August birthday, milestone anniversary, or a special summer moment, most people immediately think of the classic, lime-green peridot. But did you know that August babies are uniquely blessed with three distinct, spectacular gemstones? Together, peridot, spinel, and sardonyx offer an incredible range of colors, textures, and rich historical stories.
For over 125 years, Heileman & Company Jewelers has been helping the Greater Cincinnati community celebrate life’s most meaningful moments with exquisite, handcrafted fine jewelry. Whether you love the vivid pop of traditional green or want to explore rare, exotic color options, our master jewelers are here to guide you through the beautiful world of August birthstones.
1. The Traditional Icon: Vibrant Peridot
Peridot is the most famous and widely recognized August birthstone. Known for its luminous olive-to-lime-green hue, this gem perfectly captures the warm, bright energy of high summer.
- The Mantle and Meteorites: Unlike most gemstones that form within the Earth's crust, peridot is forged deep within the Earth’s upper mantle—a rare geological trait it shares exclusively with diamonds. Even more remarkably, peridot crystals have been found embedded within meteorites that crashed to Earth, making it a truly extraterrestrial treasure.
- Symbolism & Style: Ancient Egyptians revered peridot as the "gem of the sun," believing it protected its wearer from nightmares and brought good health and prosperity. Today, peridot adds a brilliant splash of color to fine jewelry. It pairs beautifully with 14K or 18K yellow gold for a warm, vintage aesthetic, or with platinum or white gold for a crisp, modern look.
2. The Modern Masterpiece: Brilliant Spinel

If green isn't your color, August has an incredible alternative. Added to the official birthstone lineup in 2016, spinel is celebrated for its incredible brilliance, rich history, and stunning diversity.
- A Spectrum of Color: Spinel comes in a phenomenal array of colors, from intense "stoplight" reds and vibrant pinks to romantic lavenders, deep violet-blues, and even dramatic black. For centuries, red spinels were actually mistaken for rubies—even gracing prominent royal crown jewels!
- Cincinnati's Exotic Gemstone Destination: Spinel is highly prized by jewelry collectors due to its single refraction (similar to diamonds), which gives it exceptional fire and sparkle. At Heileman & Company, we specialize in sourcing exotic and unusual gemstones like spinel. A custom-designed spinel ring or pendant is the perfect way to express individuality and modern style.
3. The Historical Legend: Bold Sardonyx
For those who appreciate deep historical roots and architectural patterns, sardonyx is the oldest of the August birthstones.
- Natural Elegance: Sardonyx is a unique variety of onyx characterized by alternating bands of brownish-red sard and white chalcedony layers. This distinct, banded look makes it a favorite for custom signet rings, cameos, and intaglios.
- Strength and Protection: Historically, Roman soldiers wore sardonyx talismans carved with the image of Mars into battle to inspire courage and protection. Today, it symbolizes confidence, stability, and enduring strength.
Bring Your Vision to Life with Custom Jewelry in Cincinnati
At Heileman & Company Jewelers, we believe that your birthstone jewelry should feel intimately connected to your personal style and story. If you are looking to treat yourself or gift a loved one a piece of August birthstone jewelry, a custom-designed piece ensures unparalleled quality and personal meaning.
Our signature custom design process makes creating your dream piece a seamless, collaborative journey:
- The Brainstorming Consultation: Sit down directly with our jewelry consultants at our private showroom to select your perfect peridot or exotic spinel, map out your budget, and choose your preferred precious metals.
- 3D CAD Modeling: Our design team creates a precise digital 3D model of your piece, ensuring every detail is exactly to your liking before production begins.
- On-Site Handcrafting: Our local, on-site master jewelers use timeless casting and setting techniques right here in our northern Cincinnati workshop to meticulously build your piece.
We also specialize in heirloom repurposing, allowing us to take loose birthstones or old family gold and redesign them into a modern heirloom you can wear every day.
Visit Our Symmes Township Showroom
Ready to explore the vivid green of peridot or the multi-colored fire of spinel? Visit Heileman & Company Jewelers today to view our collections or begin a custom design journey.
- 📍 Address: 11362 Montgomery Road, Cincinnati, OH 45249 (Located in the Harper's Point Shopping Center next to Servatii Bakery).
- ⏰ Showroom Hours: Monday through Friday from 10:00 AM to 5:00 PM, and Saturdays from 10:00 AM to 4:00 PM.
- 📞 Contact Us: Call (513) 489-6500 to schedule a personalized design consultation or ask about our in-house repair services!