Few gemstones embody elegance and versatility quite like black onyx. From its deep, mysterious color to its ties to Art Deco style, onyx can be found everywhere from fine jewelry to luxury countertops and tile. Whether set in gold or platinum or crafted into bracelets, rings, necklaces, or earrings, the drama, contrast, and sophistication of black onyx continue to captivate the luxury jewelry market.
What is Onyx?
Onyx is a type of semi-translucent chalcedony, a mineral in the quartz family. Known for its smooth texture and striking color contrast, naturally occurring onyx can be found in shades of black, white, brown, green, and red.
Unlike agate that features curved bands, the banding in natural onyx runs parallel. When onyx has layers of black and white, it’s known as banded onyx, while a mix of red, brown, black, and white bands is known as sardonyx.
Although black onyx is the most popular for fine jewelry, genuine black onyx is rare. Even in luxury markets, black onyx jewelry often features gemstones that have been dyed to intensify the color. For costume jewelry, gemstones labeled as black onyx may actually be chalcedony or agate that has been dyed to achieve the deep, dark color of authentic black onyx.
What is Onyx Made of?
Onyx is primarily composed of silicon dioxide, the same material found in quartz. Water with a high silica content drips or seeps into volcanic areas or limestone caves, and the mineral content and varying water levels create the parallel bands that onyx is known for.
Is Onyx a Precious or Semi-Precious Stone?
Like amethyst, turquoise, and topaz, onyx is considered a semi-precious gemstone instead of a precious gemstone. However, its classification is less important to the value of black onyx jewelry than the craftsmanship, setting, and design that go into creating pieces. Although it ranks as a semi-precious stone, onyx necklaces and other pieces of jewelry made from quality metals by master artisans easily earn their place as favorites among luxury jewelry collections.
How to Tell if a Black Onyx is Real
- Check the feel: Real black onyx is cool to the touch but warms with contact and has a heavy, dense weight to it. Similar-looking stones, such as obsidian, are noticeably lighter than a piece of onyx of the same size.
- Check the appearance: Closely examine onyx bracelets, pendants, or other jewelry for faint bands of white or grey that are naturally appearing within the stone. While some imitations can be translucent around the edges, real onyx should be fully opaque when held up to a bright light.
- Check for scratches: While it is never recommended to deliberately attempt to scratch a piece of your fine jewelry, an onyx bracelet, necklace, or set of onyx earrings should be scratch-resistant and should not show marks as easily as glass, dyed agates, or resins.
- Check the surface: Using a magnifying glass, look for imperfections on the surface of the stone that would indicate it’s artificial, such as air bubbles or a surface that looks too pristine without any natural inclusions.
The Meaning and Symbolism of Black Onyx Jewelry
For centuries, people have worn black onyx jewelry for its association with strength and protection. Ancient cultures called it a warrior stone and believed that it helped to absorb negative energy while promoting emotional resilience. In addition to being used as a conduit for emotional strength, support, and perseverance during battle, it was frequently used for ceremonial jewelry to ward off negativity.
What Does Black Onyx Jewelry Symbolize?
- Inner strength
- Confidence
- Protection
- Stability
Onyx Bracelets and Necklaces as Birthstone Jewelry
Although not one of the primary stones assigned to birth months, onyx is seen as an alternative stone for those with July birthdays, as well as an ancient stone for those born in August. In addition, onyx is also associated with Leos born in August, while ruby represents Leos born in July.
A Brief History of Onyx Necklaces and Other Jewelry
The name comes from the Greek onyx, which means "fingernail" or "claw," and has deep ties to ancient mythology. Egyptians were among the first to incorporate this beautiful stone into jewelry and ceremonial pieces, such as amulets, onyx bracelets, and beads for onyx necklaces.
The Greeks and Romans continued to value the stone, using it extensively for onyx necklaces, signet rings, and decorative engraved gemstones. Roman artists refined the sculpting of onyx, using it to create carvings depicting warriors, gods, and mythological stories. The pieces weren’t solely decorative – they symbolized authority, intellect, and luxurious taste.
Art Deco, Royalty, and the Use of Onyx in Modern Jewelry
As the Art Deco movement captured the attention of the 21st century with its love of striking contrast, bold geometry, and all things glamorous, black onyx jewelry was in the spotlight. When paired with platinum, white gold, and diamonds, onyx earrings, necklaces, and onyx bracelets created the perfect combination of clean lines and bold color.
Royalty and celebrities alike fell in love with all kinds of black onyx jewelry, wearing cocktail rings, cufflinks, and statement onyx necklaces to symbolize confidence and high social standing. Wearing black onyx jewelry was a way to convey authority while looking elegant, and the style was embraced wholeheartedly.
As modern fine jewelry has evolved, onyx necklaces, bracelets, and other luxury jewelry pieces featuring the gemstone have remained. Black onyx jewelry is a favorite of designers looking to create styles that offer timeless sophistication with a modern edge, and its versatility makes it perfect for everything from minimalist modern onyx earrings to bold, fashion-forward onyx bracelets and necklaces.
What are Some Popular Types of Onyx Jewelry?
The versatility of black onyx jewelry makes it a favorite across all styles, from onyx earrings for everyday wear to bold statement pieces, like an onyx necklace. The rich black color pairs effortlessly with all types of precious metals and many other gemstones, giving designers a blank canvas to create pieces that capture looks ranging from modern to vintage.
Onyx Necklaces and Pendants
Onyx necklaces and pendants create a beautiful focal point for an outfit, drawing attention with their deep color and polished finish. Whether worn on a chain as a single pendant or paired with other styles for a layered look, onyx necklaces add sophistication and drama to both casual and formal outfits.
Onyx Bracelets and Bangles
Seen as symbols of elegance and strength, onyx bracelets perfectly capture this beautiful balance. Often crafted from gold or platinum, onyx bracelets and bangles can be worn on their own or stacked with other luxury bracelets.
Black Onyx Earrings
Onyx earrings can range from subtle studs to dramatic drop designs, making them sleek, stylish, and incredibly versatile. Their dark color is perfect for adding contrast to an ensemble, especially when accented with diamonds or precious metals.
Black Onyx Rings
Onyx rings have endured for centuries, offering a bold presence and timeless appeal. From signet rings to cocktail styles, these beautiful designs convey confidence and sophistication while remaining effortlessly elegant.
Renowned Jewelry Brands that Use Black Onyx
- David Yurman: With over 150 pieces of black onyx jewelry across its current collections, David Yurman offers something for everyone. From simple onyx bracelets with gold accents from the Petrvs collection and dramatic drop earrings from the Châtelaine collection to striking gold and onyx necklace amulets with diamonds, David Yurman does a magnificent job at capturing the versatility of this beautiful stone.
- John Hardy: For classic pieces of black onyx jewelry, John Hardy truly shines. Its carefully curated selection includes gold or sterling silver and black onyx bracelets, talisman onyx necklaces, and timeless signet rings that are perfect for any occasion.
- William Henry: Onyx bracelets make great accessories, and William Henry captures the quality of these stones in an incredibly unique way. Designed to make a statement that is masculine yet refined, the onyx bracelets by William Henry showcase exceptional craftsmanship blended with rare and exotic materials.
Onyx in Fine Jewelry
One of the ways that black onyx jewelry stands alone is by its ability to enhance the look of other materials. From precious metals to sparkling gemstones, onyx serves as a dramatic backdrop that maximizes contrast, depth, and visual impact without overpowering the overall beauty of the design.
When paired with diamonds, onyx necklaces amplify the brilliance through striking contrast. Onyx earrings set in yellow gold create a look that is warm and inspires thoughts of vintage jewelry. For pieces that are crisp and modern, onyx necklaces in white gold or platinum will never go out of style.
How to Style Onyx Jewelry for Different Occasions
Adding black onyx jewelry to casual attire is an effortless way to add subtle sophistication to everyday looks. Minimal onyx earrings, slim onyx bracelets, or understated rings add a finishing touch to casual looks without feeling overdone.
For professional wear, choosing onyx earrings with diamond accents, an understated onyx necklace, or a gold and onyx bracelet can add elegance to work attire. These versatile pieces transition seamlessly from day to night.
For accessorizing formal wear or attire for special occasions, black onyx jewelry adds drama. Statement onyx necklaces or bold onyx earrings, especially when paired with diamonds, create a striking contrast that enhances formal attire. The deep black hue of black onyx jewelry adds depth and confidence to any outfit, ensuring a timeless look.
Onyx vs. Other Black Gemstones: What’s the Difference?
- Onyx vs. obsidian: Onyx is a quartz-based gemstone, while obsidian is made from volcanic glass. While obsidian is a 5-5.5 on the Mohs Hardness Scale, onyx is a 6.5-7, making it more durable and scratch-resistant.
- Onyx vs. black diamond: Black diamonds are significantly more expensive and rarer than black onyx. Rather than the elegant, smooth look of onyx necklaces and pendants, black diamonds offer a sparkling shine.
- Onyx vs. tourmaline: As far as opaque black banded gemstones go, onyx and tourmaline may seem similar, but each has its own unique qualities that set it apart. Although both gemstones have a high rating on the Mohs scale, tourmaline features natural lines or striations, while onyx appears smoother with a more flawless finish.
How to Care for and Maintain Black Onyx Jewelry
Onyx earrings, onyx necklaces, and onyx bracelets should be cleaned gently using warm water, mild soap, and a soft cloth to remove dirt and oils. To keep your black onyx jewelry looking pristine, avoid ultrasonic cleaners, harsh chemicals, and prolonged exposure to extreme heat, which can damage finishes as well as cause permanent color changes.
When not being worn, it’s recommended to store jewelry such as onyx bracelets separately to prevent scratching. Onyx necklaces can be hung delicately in a jewelry box, while onyx earrings should be placed in separate compartments or pouches. Being mindful of how you clean and store your jewelry ensures that it will look brand new for years to come.
Is Onyx Durable Enough for Daily Wear?
Black onyx jewelry is a fine choice for daily wear if it’s cared for properly. Onyx necklaces and earrings are a better choice for daily wear, while rings and onyx bracelets can be worn daily, but should be removed during vigorous activities such as exercise or extensive work with your hands.
Is Onyx Jewelry a Good Investment?
Although black onyx jewelry isn’t typically purchased for its return on investment, its timeless style and association with iconic design periods make it a meaningful and worthwhile addition to any luxury jewelry collection. Pieces from well-known designers, styles crafted in precious metals, and a certain variety of onyx or pieces found in specific locations can hold a higher monetary value, though onyx necklaces and other pieces of black onyx jewelry tend to be treasured more for their sentimental value than investment potential alone.
Why Onyx Jewelry Is a Timeless Choice
Wearing an onyx necklace, accessorizing with onyx earrings, or adding an onyx bracelet to your wrist are all ways to incorporate the classic look of this beautiful gemstone into your jewelry rotation. Thanks to the versatility, rich history, and bold simplicity of black onyx jewelry, each piece is sure to remain relevant for years to come.
Black onyx jewelry has endured as a symbol of strength, sophistication, and style for centuries. From its ancient origins and cultural significance to its role in Art Deco design and modern fine jewelry, onyx continues to captivate with its bold simplicity and remarkable versatility. Whether styled in minimalist everyday pieces or dramatic statement designs, the beauty of black onyx offers a level of contrast and refinement few gemstones can match.
