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16-Inch Gemstones

The 16-inch strand is the industry standard—and no one stocks more of them than Dakota Stones. Browse more than 200 stone types across every color and pattern, from everyday staples like Amethyst and Jasper to collector favorites such as Red Garnet and rare Turquoise mine-runs. Because the strands measure a full 15 – 16 inches, you get enough beads for matching earring pairs, stretch bracelets, or a necklace focal and still have extras for accents.
Need to drill down fast? Use the filter bar to sort by Stone Type when you know the gem you want, or by Color when you’re building a palette first. Shapes range from classic rounds and rondelles to cubes, heishi, chips, and rare designer cuts—each strand calibrated for even sizing and smooth stringing.
Whether you’re a hobbyist replenishing a bead board or a pro assembling a full production run, this category is the workhorse of our catalog: reliable lengths, vast variety, and new additions arriving every month. Dive in, filter your way to the perfect strand, and keep your design queue flowing with Dakota Stones’ biggest collection.

Blue Apatite 4mm A Grade Round 15-16 Inch

Original price $18.00 - Original price $18.00
Original price $18.00
$18.00 - $18.00
Current price $18.00
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Blue Apatite ranges in color from light teal to blue to bright blue to dark blue to green. It can be easily confused with other minerals due to its...

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Original price $18.00 - Original price $18.00
Original price $18.00
$18.00 - $18.00
Current price $18.00
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Amethyst 4mm Round Faceted A Grade - 15-16 Inch

Original price $19.00 - Original price $19.00
Original price $19.00
$19.00 - $19.00
Current price $19.00
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Amethyst is a beautiful purple stone, known as a “Gem of Fire” by ancient cultures. It has been greatly sought after throughout history and was at ...

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Original price $19.00 - Original price $19.00
Original price $19.00
$19.00 - $19.00
Current price $19.00
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Angelite 4mm Round 15-16 Inch

Original price $19.00 - Original price $19.00
Original price $19.00
$19.00 - $19.00
Current price $19.00
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A natural blue form of calcium sulfate, it raises the state of conscious awareness and facilitates contact with your angels. It is mined in Peru. I...

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Original price $19.00 - Original price $19.00
Original price $19.00
$19.00 - $19.00
Current price $19.00
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Aquamarine 4mm Cube Table Cut - 15-16 Inch

Original price $31.00 - Original price $31.00
Original price $31.00
$31.00 - $31.00
Current price $31.00
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Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent t...

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Original price $31.00 - Original price $31.00
Original price $31.00
$31.00 - $31.00
Current price $31.00
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Aquamarine 4mm Faceted Coin 15-16 Inch

Original price $26.00 - Original price $26.00
Original price $26.00
$26.00 - $26.00
Current price $26.00
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Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent t...

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Original price $26.00 - Original price $26.00
Original price $26.00
$26.00 - $26.00
Current price $26.00
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Aquamarine 4mm Faceted Round 15-16

Original price $21.00 - Original price $21.00
Original price $21.00
$21.00 - $21.00
Current price $21.00
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Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent t...

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Original price $21.00 - Original price $21.00
Original price $21.00
$21.00 - $21.00
Current price $21.00
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Aquamarine 3x4mm Rondelle Faceted A Grade - 15-16 Inch

Original price $25.00 - Original price $25.00
Original price $25.00
$25.00 - $25.00
Current price $25.00
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Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent t...

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Original price $25.00 - Original price $25.00
Original price $25.00
$25.00 - $25.00
Current price $25.00
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Aquamarine 4mm Round Faceted A Grade - 15-16 Inch

Original price $21.00 - Original price $21.00
Original price $21.00
$21.00 - $21.00
Current price $21.00
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Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent t...

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Original price $21.00 - Original price $21.00
Original price $21.00
$21.00 - $21.00
Current price $21.00
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Aquamarine Natural 4mm Faceted Round AAA Grade - 15-16 Inch

Original price $24.00 - Original price $24.00
Original price $24.00
$24.00 - $24.00
Current price $24.00
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Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent t...

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Original price $24.00 - Original price $24.00
Original price $24.00
$24.00 - $24.00
Current price $24.00
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Artistic Jasper 4mm Round - 15-16 Inch

Original price $10.00 - Original price $10.00
Original price $10.00
$10.00 - $10.00
Current price $10.00
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Artistic Stone has beautiful, intricate patterns of minute black flecks, bands, and veins within the tan, cream, gray and mauve stone. It is made u...

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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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Arusha Sunstone 4mm Microfaceted Round - 15-16 Inch

Original price $16.00 - Original price $16.00
Original price $16.00
$16.00 - $16.00
Current price $16.00
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Arusha Sunstone is a combination of Feldspar and Beryl.

Original price $16.00 - Original price $16.00
Original price $16.00
$16.00 - $16.00
Current price $16.00
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Australian Boulder Opal 4mm Faceted Round - 15-16 Inch

Original price $28.00 - Original price $28.00
Original price $28.00
$28.00 - $28.00
Current price $28.00
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Boulder Opal is a golden-brown to dark brown stone, displaying these colors in patterns of parallel bands. It is considered a precious Opal, and fo...

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Original price $28.00 - Original price $28.00
Original price $28.00
$28.00 - $28.00
Current price $28.00
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Australian Chrysoprase 4mm Natural Cube Banded, Faceted, A-Grade - 15-16 Inch

Original price $38.00 - Original price $38.00
Original price $38.00
$38.00 - $38.00
Current price $38.00
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Original price $38.00 - Original price $38.00
Original price $38.00
$38.00 - $38.00
Current price $38.00
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Australian Chrysoprase 4mm Cube Faceted, Banded, With Brown - 15-16 Inch

Original price $22.00 - Original price $22.00
Original price
$22.00 - $22.00
Current price $22.00
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Chrysoprase is a bright apple green, translucent stone, whose color often caused ancient jewelers to confuse it with Emerald. A cryptocrystalline C...

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Original price $22.00 - Original price $22.00
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$22.00 - $22.00
Current price $22.00
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Australian Chrysoprase Banded 4mm Faceted Round A Grade - 15-16 Inch

Original price $32.00 - Original price $32.00
Original price $32.00
$32.00 - $32.00
Current price $32.00
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Original price $32.00 - Original price $32.00
Original price $32.00
$32.00 - $32.00
Current price $32.00
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Azurite 4mm Faceted Round - 15-16 Inch

Original price $20.00 - Original price $20.00
Original price $20.00
$20.00 - $20.00
Current price $20.00
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Azurite is a soft, deep-blue copper mineral produced by weathering of copper ore deposits. It is best known for its characteristic deep blue to vio...

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$20.00 - $20.00
Current price $20.00
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Bayong 4mm Round - 15-16 Inch

Original price $5.00 - Original price $5.00
Original price $5.00
$5.00 - $5.00
Current price $5.00
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Bayong is a hardwood native to the Philippines with a natural red-brown color, and is similar to Mahogany.Like all of Dakota Stones items, our wood...

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Original price $5.00 - Original price $5.00
Original price $5.00
$5.00 - $5.00
Current price $5.00
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Biotite Black 4mm Round - 15-16 Inch

Original price $16.00 - Original price $16.00
Original price $16.00
$16.00 - $16.00
Current price $16.00
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Original price $16.00 - Original price $16.00
Original price $16.00
$16.00 - $16.00
Current price $16.00
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Black Opal Australian, Faceted 4mm Round - 15-16 Inch

Original price $48.00 - Original price $48.00
Original price $48.00
$48.00 - $48.00
Current price $48.00
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Black Opal is a naturally occurring variety of precious opal mined in Australia. this opal variety is characterized by their dark base tone. It is ...

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Original price $48.00 - Original price $48.00
Original price $48.00
$48.00 - $48.00
Current price $48.00
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Black Spinel 4mm Faceted Round - 15-16 Inch

Original price $15.00 - Original price $15.00
Original price $15.00
$15.00 - $15.00
Current price $15.00
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Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not onl...

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Original price $15.00 - Original price $15.00
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Black Spinel 4mm Natural Round - 15-16 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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Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not onl...

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Original price $14.00 - Original price $14.00
Original price $14.00
$14.00 - $14.00
Current price $14.00
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Black Tourmalinated Quartz 4mm Round - 15-16 Inch

Original price $12.00 - Original price $12.00
Original price $12.00
$12.00 - $12.00
Current price $12.00
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Tourmaline naturally occurs in a full color spectrum and is used as both a trade name and as a gemological name for a group of minerals of varying ...

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Original price $12.00 - Original price $12.00
Original price $12.00
$12.00 - $12.00
Current price $12.00
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Blood Quartz 4mm Faceted Round - 15-16 Inch

Original price $20.00 - Original price $20.00
Original price $20.00
$20.00 - $20.00
Current price $20.00
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Blood Quartz is a clear to milky-white silicon dioxide mineral. Its inclusions of red, orange and rust are due to traces of hematite within the sto...

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Original price $20.00 - Original price $20.00
Original price $20.00
$20.00 - $20.00
Current price $20.00
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Bloodstone 4mm Round 15-16 Inch

Original price $11.00 - Original price $11.00
Original price $11.00
$11.00 - $11.00
Current price $11.00
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Bloodstone most commonly refers to green Jasper with red inclusions consisting of Hematite. Naturally occurring in hues of blue-green to green with...

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Original price $11.00 - Original price $11.00
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Current price $11.00
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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.