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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.

Rainbow Sapphire 4mm Round Faceted - 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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Sapphires are precious gemstones, but unlike rubies, they come in a rainbow of colors besides red!  They are all varieties of the mineral corundum,...

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Original price $28.00 - Original price $28.00
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$28.00 - $28.00
Current price $28.00
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Green Apatite 4mm Round Faceted - 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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Green Apatite is a transparent to translucent stone that may be green, yellow to green or sea to green in color. Apatite has been labeled the “dece...

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Current price $15.00
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Lapis 4mm Microfaceted Round A Grade - 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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Lapis is a semi to precious stone and one of the most sought after throughout history. It is highly regarded for its beautiful blue color flecked w...

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Current price $20.00
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Australian Boulder Opal 4mm Cube Faceted - 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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Current price $32.00
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Black Opal 4mm Round Faceted - 15-16 Inch

Original price $44.00 - Original price $44.00
Original price $44.00
$44.00 - $44.00
Current price $44.00
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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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Current price $44.00
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Ethiopian Opal 4x6-7x10mm Drop Faceted - 15-16 Inch

Original price $315.00 - Original price $315.00
Original price $315.00
$315.00 - $315.00
Current price $315.00
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Ethiopian Opal was first discovered in Ethiopia in 1994, with additional major finds in 2008 and 2013. Beautiful specimens of Precious Opal, Fire O...

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Original price $315.00 - Original price $315.00
Original price $315.00
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Current price $315.00
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Larimar 4mm Microfaceted Round A Grade - 15-16 Inch

Original price $41.00 - Original price $41.00
Original price
$41.00 - $41.00
Current price $41.00
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Larimar is a translucent blue, turquoise and white stone that can have streaks and patterns of white, as well as red or brown either from oxidation...

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Sapphire 4mm Microfaceted Round AA Grade - 15-16 Inch

Original price $45.00 - Original price $45.00
Original price $45.00
$45.00 - $45.00
Current price $45.00
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Sapphires are precious gemstones, but unlike rubies, they come in a rainbow of colors besides red! They are all varieties of the mineral corundum,...

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Original price $45.00 - Original price $45.00
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Current price $45.00
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Tourmaline 4mm Banded Blue/Green Microfaceted Round - 15-16 Inch

Original price $31.00 - Original price $31.00
Original price $31.00
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Current price $31.00
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Tourmaline is classified as a semiprecious stone and occurs in a vast array of colors, everything from colorless to black, from pastel to bright to...

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Current price $31.00
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Diopside 4-5mm Irregular Cube - 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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Diopside is a calcium and magnesium silicate mineral. It is transparent or translucent, and can display a nearly emerald green color due to the pre...

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Current price $32.00
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Seraphinite 4mm Faceted Round AAA Grade - 15-16 Inch

Original price $45.00 - Original price $45.00
Original price $45.00
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Current price $45.00
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Seraphinite's chatoyancy (optical reflectance) gives it a feathery appearance associated with angels (also known as seraphim.) Seraphinite is most ...

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Current price $45.00
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Wood Rhodonite 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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Rhodonite, whose name is derived from the Greek word for Rose, “rhodon,” is known for its pink, red and magenta hues. A Manganese inosilicate (or c...

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White Lace Red 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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White Lace Red Jasper is a deep red or burnt orange stone, complemented by white, gray, and black bands and flecks of color. Red Jasper has histori...

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Current price $10.00
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Verdite 4mm 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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Verdite is a light to dark-green metamorphic rock, and is a variety of Fuchsite, which is itself a form of Muscovite. It appears green because of t...

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Current price $14.00
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Smoky Quartz 4mm 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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Smoky Quartz is a translucent smoky brown or gray variety of Quartz. It ranges from almost completely transparent to an almost opaque brownish to g...

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Sunset Dumortierite 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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Sunset Dumortierite has a much brighter palette than regular Dumortierite, from light blue to lapis blue to cobalt, as well as some occurrences of ...

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Sodalite 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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Sodalite is named for its sodium content and may be classified as a feldspathoid. Blue Sodalite is sometimes referred to as “poor man’s lapis” beca...

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Rhodonite with Matrix 4mm Round - 15-16 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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Rhodonite, whose name is derived from the Greek word for Rose, “rhodon,” is known for its pink, red and magenta hues. A Manganese inosilicate (or c...

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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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Prehnite 4mm Round AAA Grade - 15-16 Inch

Original price $23.00 - Original price $23.00
Original price $23.00
$23.00 - $23.00
Current price $23.00
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Prehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South...

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Current price $23.00
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Picture Jasper 4mm Round - 15-16 Inch

Original price $9.00 - Original price $9.00
Original price $9.00
$9.00 - $9.00
Current price $9.00
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Picture Jasper is a form of brown Jasper characterized by its unique banding and flow patterns created by petrified or silicate mud and occasional ...

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Olive Jade 4mm Round - 15-16 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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Jade is the industry name for this beautiful deep green stone. Ours is actually a Serpentine, but takes a trained eye and a microscope to discern t...

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Current price $9.00
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Noreena Jasper 4mm 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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Noreena Jasper is a silicified pelite or mudstone mined in the Pilbara region of Western Australia. It is known for its abstract designs in rusty r...

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Current price $14.00
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New Jade 4mm 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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Jade is the industry name for this beautiful deep green stone. Ours is actually a Serpentine, but takes a trained eye and a microscope to discern t...

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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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Golden Tiger Eye 4mm Round - 15-16 Inch

Original price $13.00 - Original price $13.00
Original price $13.00
$13.00 - $13.00
Current price $13.00
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Tiger Eye is a macrocrystalline Quartz stone with bands of rich golds and browns. Its chatoyant layers that create a flash which seems to emanate f...

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Original price $13.00 - Original price $13.00
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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.