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Onyx Gemstone Beads

Black Onyx is highly esteemed in the world of gemology for its rich, deep color and fine crystalline structure. Scientifically, Onyx is a variety of the silicate mineral chalcedony, formed by the deposition of silica at low temperatures in gas cavities in lava. This results in its unique bands of color, which can range from white to almost every other shade, often layered in striking, contrasting patterns.

Facts: Black Onyx has been used since antiquity, cherished not only for its beauty but also for its purported protective properties. The Romans, in particular, crafted seals, amulets, and rings from Onyx. It was also popular amongst the Greek and Egyptian civilizations for stone carvings and cameos, where its layered colors were ideal for creating images with depth and contrast.

Metaphysical / Holistic: Black Onyx is believed to bring strength, endurance, and perseverance to those who wear or carry it. It is also thought to help individuals face their fears and build self-confidence.

Onyx 10mm Round Step Cut - 15-16 Inch

Original price $18.00 - Original price $18.00
Original price $18.00
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Current price $18.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all to black stone, and much of the black Ony...

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Original price $18.00 - Original price $18.00
Original price $18.00
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Current price $18.00
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Onyx 8mm Round Large Hole 8-Inch

Original price $12.00 - Original price $12.00
Original price $12.00
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Current price $12.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $12.00 - Original price $12.00
Original price $12.00
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Current price $12.00
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MATTE Onyx 6mm Round - 8-Inch

Original price $7.00 - Original price $7.00
Original price $7.00
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Current price $7.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $7.00 - Original price $7.00
Original price $7.00
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Current price $7.00
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Onyx 10mm Round - 8-Inch

Original price $9.00 - Original price $9.00
Original price $9.00
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Current price $9.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $9.00 - Original price $9.00
Original price $9.00
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Current price $9.00
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Onyx 8mm Round 8-Inch

Original price $8.00 - Original price $8.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $8.00 - Original price $8.00
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Onyx 4mm Faceted Round - 8-Inch

Original price $7.00 - Original price $7.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $7.00 - Original price $7.00
Original price $7.00
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Current price $7.00
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MATTE Onyx 10mm Round - 8-Inch

Original price $9.00 - Original price $9.00
Original price $9.00
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Current price $9.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $9.00 - Original price $9.00
Original price $9.00
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Current price $9.00
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MATTE Onyx 8mm Round Large Hole 8-Inch

Original price $14.00 - Original price $14.00
Original price $14.00
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Current price $14.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $14.00 - Original price $14.00
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Current price $14.00
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Onyx 10mm Round Large Hole 8-Inch

Original price $14.00 - Original price $14.00
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Current price $14.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $14.00 - Original price $14.00
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Current price $14.00
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Onyx 6mm Round Faceted 8-Inch

Original price $9.00 - Original price $9.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $9.00 - Original price $9.00
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MATTE Onyx 4mm Round - 8-Inch

Original price $6.00 - Original price $6.00
Original price $6.00
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Current price $6.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $6.00 - Original price $6.00
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Onyx 4mm Round 8-Inch

Original price $6.00 - Original price $6.00
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Current price $6.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $6.00 - Original price $6.00
Original price $6.00
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Current price $6.00
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Onyx 10mm Faceted Round Large Hole 8-Inch

Original price $14.00 - Original price $14.00
Original price $14.00
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Current price $14.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $14.00 - Original price $14.00
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Current price $14.00
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Onyx 12mm Square 8-Inch

Original price $11.00 - Original price $11.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $11.00 - Original price $11.00
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Onyx 12mm Coin 8-Inch

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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $11.00 - Original price $11.00
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Onyx 8mm Star Cut Round 15-16 Inch

Original price $19.00 - Original price $19.00
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Current price $19.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $19.00 - Original price $19.00
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Onyx 4mm Rondelle Faceted 8-Inch

Original price $16.00 - Original price $16.00
Original price $16.00
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Current price $16.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $16.00 - Original price $16.00
Original price $16.00
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Current price $16.00
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Onyx 6mm Rondelle 8-Inch

Original price $11.00 - Original price $11.00
Original price $11.00
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Current price $11.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $11.00 - Original price $11.00
Original price $11.00
$11.00 - $11.00
Current price $11.00
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Onyx 8mm Faceted Rondelle 8-Inch

Original price $14.00 - Original price $14.00
Original price $14.00
$14.00 - $14.00
Current price $14.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $14.00 - Original price $14.00
Original price $14.00
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Current price $14.00
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MATTE Onyx 30X40 Rectangle 8-Inch - CLEARANCE

Original price $21.00 - Original price $21.00
Original price $21.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $21.00 - Original price $21.00
Original price $21.00
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Current price $21.00
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Onyx 8mm Round Faceted 8-Inch

Original price $10.00 - Original price $10.00
Original price $10.00
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Current price $10.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $10.00 - Original price $10.00
Original price $10.00
$10.00 - $10.00
Current price $10.00
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Onyx 6mm Faceted Rondelle 8-Inch

Original price $14.00 - Original price $14.00
Original price $14.00
$14.00 - $14.00
Current price $14.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $14.00 - Original price $14.00
Original price $14.00
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Current price $14.00
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MATTE Onyx 10x14 Oval 8-Inch

Original price $11.00 - Original price $11.00
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Current price $11.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all-black stone, and much of the black Onyx o...

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Original price $11.00 - Original price $11.00
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Current price $11.00
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Onyx 40mm Square Donut - Pendant

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Current price $9.00
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Onyx is a black and white banded Chalcedony, a cryptocrystalline Quartz. It is often thought of as an all to black stone, and much of the black Ony...

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Original price $9.00 - Original price $9.00
Original price $9.00
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Current price $9.00
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All About Hubei

All About Hubei

When people think of Turquoise, the conversation often centers on the American Southwest or Iran. Chinese Turquoise—particularly material from Hubei Province—receives far less attention, despite being one of the most...

Read full blog here

FAQ

Are all Dakota Stones gemstone beads genuine?

Yes, all of our gemstone beads are made from authentic, natural materials. Any treatments (such as stabilization or dyeing) are clearly noted.

Are gemstone beads durable for everyday jewelry?

Most stones are durable, but hardness varies. Softer stones (below 6 on the Mohs scale) are best for necklaces or earrings rather than rings or bracelets.

How are Dakota Stones ethically sourced?

We are an ethical business that focuses on responsibly sourced rather than making absolute claims. There is no universal or enforceable certification system for ethically sourced gemstone rough used in beads.

Our sourcing decisions are guided by:

  • Long-standing relationships with trusted partners
  • Clear expectations for labor and working conditions
  • Ongoing evaluation of suppliers and materials
  • Transparency about what is—and isn’t—documented in the industry
Where are your gemstones manufactured?

Most of our gemstone beads are manufactured in China and India, with select turquoise products sourced and produced in the United States.

Our primary manufacturing partner in China is a long-standing, multigenerational relationship that dates back to 2003. In India, we work primarily with smaller, family-based operations and purchase ready stock rather than commissioning production.

Do you work directly with miners?

When possible, yes. In many cases, however, direct sourcing from miners is not feasible due to cost, logistics, or material availability—especially for lower-value stones like jaspers and agates.

Instead, we often work with trusted intermediaries who have established relationships within the mining and cutting communities. This is common and unavoidable in the natural stone industry.

Why don’t you list mine-by-mine origins for every stone?

That level of documentation often does not exist—or cannot be verified reliably—for gemstone beads.

Natural stones frequently pass through multiple hands between mining, cutting, and stringing. Rather than offering incomplete or misleading origin claims, we choose to be honest about what we know and transparent about industry limitations.

Have labor conditions improved in your supply chain over time?

Yes. Over the past two decades, labor standards, worker protections, and compensation—particularly in China—have improved significantly as policies shifted toward building a middle class and formalizing manufacturing standards.

These changes have increased costs, but they also reflect progress in worker welfare. We view that as a positive development and adjust our sourcing accordingly.