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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.

4x6 mm Dendritic Opal Table Cut Corner Drilled Cube - 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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This variety of opal is named "dendritic" for the small inclusions within it that resemble moss or ferns. These inclusions consist of iron, mangane...

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Original price $26.00 - Original price $26.00
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Current price $26.00
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4x6 mm Peach Moonstone Natural Table Cut Corner Drilled Cube - 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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Moonstone naturally occurs in a broad spectrum of colors, but is most commonly associated with white, gray and peach. Its soft chatoyancy is remins...

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Original price $30.00 - Original price $30.00
Original price $30.00
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Current price $30.00
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African Petrified Wood Agate 6-7mm Table Cut Cube - 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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Petrified Wood Agate is formed from the petrifaction process of primeval trees over the course of many years. Petrification occurs when the wood is...

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Current price $25.00
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African Turquoise 6-7mm Table Cut Cube - 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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African Turquoise is not actually Turquoise, but rather a speckled teal Jasper found in Africa and often treated to simulate the beautiful blue to ...

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Original price $28.00 - Original price $28.00
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Current price $28.00
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Amazonite 6-7mm Table Cut Cube - 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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Brazilian Amazonite is an opaque blue to green to light green stone, often occurring with inclusions of white, yellow or gray and occasionally tran...

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Original price $28.00 - Original price $28.00
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Amethyst 7mm Cube Table Cut - 15-16 Inch

Original price $41.00 - Original price $41.00
Original price $41.00
$41.00 - $41.00
Current price $41.00
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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 $41.00 - Original price $41.00
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Current price $41.00
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Amethyst Natural 6-7mm Table Cut Cube A Grade - 15-16 Inch

Original price $39.00 - Original price $39.00
Original price $39.00
$39.00 - $39.00
Current price $39.00
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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 $39.00 - Original price $39.00
Original price $39.00
$39.00 - $39.00
Current price $39.00
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Amethyst Natural 6x8mm Table Cut Corner Drilled Cube - 15-16 Inch

Original price $35.00 - Original price $35.00
Original price $35.00
$35.00 - $35.00
Current price $35.00
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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 $35.00 - Original price $35.00
Original price $35.00
$35.00 - $35.00
Current price $35.00
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Australian Green Opal 5mm Cube Table Cut - 15-16 Inch - CLEARANCE

Original price $41.00 - Original price $41.00
Original price $41.00
$41.00 - $41.00
Current price $41.00
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Australian Green Opal is a variety of Common Opal which is a mixture of Opal and nontronite. Common Opal is generally opaque, without the play of c...

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Current price $41.00
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Australian Green Opal 7mm Cube Table Cut - 15-16 Inch - CLEARANCE

Original price $55.00 - Original price $55.00
Original price $55.00
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Current price $55.00
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Australian Green Opal is a variety of Common Opal which is a mixture of Opal and nontronite. Common Opal is generally opaque, without the play of c...

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Original price $55.00 - Original price $55.00
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Current price $55.00
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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
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Current price $31.00
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Aquamarine 7mm Cube Table Cut - 15-16 Inch - CLEARANCE

Original price $43.00 - Original price $43.00
Original price $43.00
$43.00 - $43.00
Current price $43.00
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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 $43.00 - Original price $43.00
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Aquamarine 2mm Faceted Cube - 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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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 $20.00 - Original price $20.00
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Current price $20.00
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Aquamarine 2mm Faceted Cube A Grade - 15-16 Inch

Original price $16.00 - Original price $16.00
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Current price $16.00
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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 $16.00 - Original price $16.00
Original price $16.00
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Current price $16.00
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Aquamarine Natural 6-7mm Table Cut Cube - 15-16 Inch

Original price $39.00 - Original price $39.00
Original price $39.00
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Current price $39.00
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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 $39.00 - Original price $39.00
Original price $39.00
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Current price $39.00
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Australian Chrysoprase 3mm Cube Table Cut Banded - 15-16 Inch

Original price $25.00 - Original price $25.00
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Current price $25.00
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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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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
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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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Current price $22.00
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Australian Chrysoprase Faceted 2mm Cube - 15-16 Inch

Original price $22.00 - Original price $22.00
Original price $22.00
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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
Original price $22.00
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Current price $22.00
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Black Moonstone 5mm Cube Table Cut - 15-16 Inch

Original price $34.00 - Original price $34.00
Original price $34.00
$34.00 - $34.00
Current price $34.00
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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 $34.00 - Original price $34.00
Original price $34.00
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Current price $34.00
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Black Tourmaline 4x6mm Table Cut Corner Drilled Cube - 15-16 Inch

Original price $30.00 - Original price $30.00
Original price $30.00
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Current price $30.00
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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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Current price $30.00
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Blood Quartz 2mm Banded Faceted Cube 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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Blood Quartz is a clear to milky to white silicon dioxide mineral. Its inclusions of red, orange and rust are due to traces of hematite within the ...

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Original price $18.00 - Original price $18.00
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Current price $18.00
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Bloodstone 6-7mm Table Cut Cube - 15-16 Inch

Original price $28.00 - Original price $28.00
Original price $28.00
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Current price $28.00
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Bloodstone most commonly refers to green Jasper with red inclusions consisting of Hematite. Naturally occuring in hues of blue to green to green wi...

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Blue Apatite 7mm Cube Table Cut - 15-16 Inch

Original price $43.00 - Original price $43.00
Original price $43.00
$43.00 - $43.00
Current price $43.00
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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 $43.00 - Original price $43.00
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Current price $43.00
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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.