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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
Original price $26.00
$26.00 - $26.00
Current price $26.00
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Australian Green Opal 10mm Round Faceted - 15-16 Inch - CLEARANCE

Original price $59.00 - Original price $59.00
Original price $59.00
$59.00 - $59.00
Current price $59.00
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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 $59.00 - Original price $59.00
Original price $59.00
$59.00 - $59.00
Current price $59.00
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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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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 7mm Cube Table Cut - 15-16 Inch - CLEARANCE

Original price $55.00 - Original price $55.00
Original price $55.00
$55.00 - $55.00
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
Original price $55.00
$55.00 - $55.00
Current price $55.00
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Australian Green Opal 8mm Round Faceted - 15-16 Inch - CLEARANCE

Original price $45.00 - Original price $45.00
Original price $45.00
$45.00 - $45.00
Current price $45.00
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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 $45.00 - Original price $45.00
Original price $45.00
$45.00 - $45.00
Current price $45.00
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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 Boulder Opal Faceted 3mm Round - 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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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 $32.00 - Original price $32.00
Original price $32.00
$32.00 - $32.00
Current price $32.00
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Australian Boulder Opal Faceted 5mm Round - 15-16 inch

Original price $52.00 - Original price $52.00
Original price $52.00
$52.00 - $52.00
Current price $52.00
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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 $52.00 - Original price $52.00
Original price $52.00
$52.00 - $52.00
Current price $52.00
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Australian Green Opal Light Green 10mm Round A Grade - 15-16 Inch - CLEARANCE

Original price $59.00 - Original price $59.00
Original price $59.00
$59.00 - $59.00
Current price $59.00
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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 $59.00 - Original price $59.00
Original price $59.00
$59.00 - $59.00
Current price $59.00
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Australian Green Opal Light Green 8mm Round - 15-16 Inch - CLEARANCE

Original price $34.00 - Original price $34.00
Original price $34.00
$34.00 - $34.00
Current price $34.00
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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 $34.00 - Original price $34.00
Original price $34.00
$34.00 - $34.00
Current price $34.00
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Australian Green Opal Light Green 8mm Round A Grade - 15-16 Inch - CLEARANCE

Original price $42.00 - Original price $42.00
Original price $42.00
$42.00 - $42.00
Current price $42.00
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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 $42.00 - Original price $42.00
Original price $42.00
$42.00 - $42.00
Current price $42.00
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Australian Opal 3-8mm Chip - 15-16 Inch

Original price $175.00 - Original price $175.00
Original price $175.00
$175.00 - $175.00
Current price $175.00
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Dakota Stones Australian Opals are back. We have been working with a father/ son team out of Australia for many years that assist us to bring you s...

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Original price $175.00 - Original price $175.00
Original price $175.00
$175.00 - $175.00
Current price $175.00
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Australian Opal 4-6mm Rondelle Faceted Matrix - 15-16 Inch

Original price $300.00 - Original price $300.00
Original price $300.00
$300.00 - $300.00
Current price $300.00
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Dakota Stones Australian Opals are back. We have been working with a father/ son team out of Australia for many years that assist us to bring you s...

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Original price $300.00 - Original price $300.00
Original price $300.00
$300.00 - $300.00
Current price $300.00
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Australian Opal 5mm Rondelle Faceted - 15-16 Inch

Original price $300.00 - Original price $300.00
Original price $300.00
$300.00 - $300.00
Current price $300.00
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Dakota Stones Australian Opals are back. We have been working with a father/ son team out of Australia for many years that assist us to bring you s...

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Original price $300.00 - Original price $300.00
Original price $300.00
$300.00 - $300.00
Current price $300.00
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Black Opal Australian, Faceted 3mm Round - 15-16 Inch

Original price $40.00 - Original price $40.00
Original price $40.00
$40.00 - $40.00
Current price $40.00
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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 $40.00 - Original price $40.00
Original price $40.00
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Current price $40.00
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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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Dendritic Black Opal 6mm 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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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 $14.00 - Original price $14.00
Original price $14.00
$14.00 - $14.00
Current price $14.00
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Dendritic Black Opal 8mm Round - 15-16 Inch

Original price $17.00 - Original price $17.00
Original price $17.00
$17.00 - $17.00
Current price $17.00
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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 $17.00 - Original price $17.00
Original price $17.00
$17.00 - $17.00
Current price $17.00
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Mexican Fire Opal 2x6-5x10mm Rough Chips 15-16 Inch - CLEARANCE

Original price $46.00 - Original price $46.00
Original price $46.00
$46.00 - $46.00
Current price $46.00
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Fire Opal is a transparent or translucent stone named for the vivid red, orange and yellow colors in which it occurs. The most precious Fire Opal h...

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Original price $46.00 - Original price $46.00
Original price $46.00
$46.00 - $46.00
Current price $46.00
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Mexican Fire Opal 8-20mm Top Drill Rough Drops 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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Pink Opal 6mm Natural Energy Prism Faceted - 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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Original price $26.00 - Original price $26.00
Original price $26.00
$26.00 - $26.00
Current price $26.00
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Yellow Opal 12-16mm DC Irr Coin 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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Yellow Opal is transparent to opaque, milky white to pale yellow in color. It sometimes features dark brown to black dendritic inclusions that bran...

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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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Yellow Opal 2mm Table Cut Cube Banded - 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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Yellow Opal is transparent to opaque, milky white to pale yellow in color. It sometimes features dark brown to black dendritic inclusions that bran...

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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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Pink Opal 4mm Round A 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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Pink Opal is a variety of non to precious opal, meaning that it has lustre and some translucency without the fire or color play associated with pre...

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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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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.