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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.

Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch

Regular Price $48.00
Original price $48.00 - Original price $48.00
Original price $48.00
Sale Price $29.00
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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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Regular Price $48.00
Original price $48.00 - Original price $48.00
Original price $48.00
Sale Price $29.00
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$29.00 - $29.00
Current price $29.00
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Sale Sale

Black Spinel 6mm Round - 15-16 Inch

Original price $30.00 - Original price $30.00
Original price $30.00
$30.00 - $30.00
Current price $30.00
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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 $30.00 - Original price $30.00
Original price $30.00
$30.00 - $30.00
Current price $30.00
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Black Spinel 8mm Round - 15-16 Inch

Original price $37.00 - Original price $37.00
Original price $37.00
$37.00 - $37.00
Current price $37.00
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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 $37.00 - Original price $37.00
Original price $37.00
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Current price $37.00
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Black Tourmalinated Quartz 10mm Round - 15-16 Inch

Original price $24.00 - Original price $24.00
Original price $24.00
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Current price $24.00
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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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Black Tourmalinated Quartz 4mm Round - 15-16 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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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
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Current price $12.00
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Black Tourmalinated Quartz 6mm Round 15-16 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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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 $16.00 - Original price $16.00
Original price $16.00
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Current price $16.00
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Black Tourmalinated Quartz 8mm Round 15-16 Inch

Original price $20.00 - Original price $20.00
Original price $20.00
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Current price $20.00
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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 $20.00 - Original price $20.00
Original price $20.00
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Black Tourmaline 10mm Round - 15-16 Inch

Original price $24.00 - Original price $24.00
Original price $24.00
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Current price $24.00
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Black Tourmaline is a black crystalline aluminum borosilicate mineral with occasional light gray inclusions that appear as flecks or veins. Tourmal...

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Blood Quartz 4mm Faceted Round - 15-16 Inch

Original price $20.00 - Original price $20.00
Original price $20.00
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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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Bloodstone 6mm Star Cut Round - 15-16 Inch

Original price $19.00 - Original price $19.00
Original price $19.00
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Current price $19.00
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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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Bloodstone 8mm Round 15-16 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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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 $14.00 - Original price $14.00
Original price $14.00
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Current price $14.00
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Bloodstone 10mm Round 15-16 Inch

Original price $19.00 - Original price $19.00
Original price $19.00
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Current price $19.00
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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 $19.00 - Original price $19.00
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Blue & Yellow Tiger Eye 10mm Round - 15-16 Inch

Original price $19.00 - Original price $19.00
Original price $19.00
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Current price $19.00
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Blue Tiger Eye is a naturally occurring dark stone with chatoyant layers that create a flash which seems to emanate from within the stone as they c...

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Blue & Yellow Tiger Eye 6mm Round - 15-16 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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Blue Tiger Eye is a naturally occurring dark stone with chatoyant layers that create a flash which seems to emanate from within the stone as they c...

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Original price $12.00 - Original price $12.00
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Blue & Yellow Tiger Eye 8mm Round - 15-16 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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Blue Tiger Eye is a naturally occurring dark stone with chatoyant layers that create a flash which seems to emanate from within the stone as they c...

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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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Bloodstone 4mm Round 15-16 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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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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Bloodstone 6mm Round 15-16 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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Bloodstone most commonly refers to green Jasper with red inclusions consisting of Hematite. Naturally occuring in hues of blue-green to green with ...

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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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Blue Apatite 4mm Faceted Coin 15-16 Inch

Original price $26.00 - Original price $26.00
Original price $26.00
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Current price $26.00
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Blue Apatite ranges in color from light teal-blue to bright blue to dark blue-green. It can be easily confused with other minerals due to its varie...

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Blue Apatite 4mm Faceted Bicone - 15-16 Inch

Original price $26.00 - Original price $26.00
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Current price $26.00
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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 $26.00 - Original price $26.00
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Blue Chalcedony (Marbled) 10mm Round 15-16 Inch

Original price $48.00 - Original price $48.00
Original price $48.00
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Current price $48.00
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Blue Chalcedony is a naturally occurring soft blue translucent stone. It is a member of the Quartz family, a form of silica with a cryptocrystallin...

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Blue Chalcedony (Marbled) 6mm Round 15-16 Inch

Original price $26.00 - Original price $26.00
Original price $26.00
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Current price $26.00
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Blue Chalcedony is a naturally occurring soft blue translucent stone. It is a member of the Quartz family, a form of silica with a cryptocrystallin...

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Original price $26.00 - Original price $26.00
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Blue Chalcedony (Marbled) 8mm Round 15-16 Inch

Original price $32.00 - Original price $32.00
Original price $32.00
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Current price $32.00
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Blue Chalcedony is a naturally occurring soft blue translucent stone. It is a member of the Quartz family, a form of silica with a cryptocrystallin...

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Original price $32.00 - Original price $32.00
Original price $32.00
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Current price $32.00
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Blue Lace Agate 4mm Faceted Coin 15-16 Inch

Original price $26.00 - Original price $26.00
Original price $26.00
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Current price $26.00
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Blue Lace Agate is a naturally occurring soft blue agate, laced with bands or swirls of brighter blue, periwinkle, white and occasionally gray or b...

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Blue Moonstone Faceted 10mm Energy Prism - 15-16 Inch

Original price $42.00 - Original price $42.00
Original price $42.00
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Current price $42.00
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Moonstone naturally occurs in a broad spectrum of colors, but is most commonly associated with white, gray and peach. It's soft chatoyancy is remin...

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Original price $42.00 - Original price $42.00
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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.