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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.

Products: 2419

Biotite Black 4mm Round - 15-16 Inch

Original price $16.00 - Original price $16.00
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DZI Agate 10mm Round Black Line Pattern - 15-16 Inch

Original price $15.00 - Original price $15.00
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These Dakota Stones "DZI" style agate beads are made to resemble beads first found in India between 1000 and 2000 BCE. These reproductions are desi...

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Original price $15.00 - Original price $15.00
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DZI Agate 6mm Round Black Line Pattern - 15-16 Inch

Original price $13.00 - Original price $13.00
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Current price $13.00

These Dakota Stones "DZI" style agate beads are made to resemble beads first found in India between 1000 and 2000 BCE. These reproductions are desi...

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Original price $13.00 - Original price $13.00
Original price $13.00
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DZI Agate 8mm Round Black Line Pattern 15-16 Inch

Original price $14.00 - Original price $14.00
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Current price $14.00

These Dakota Stones "DZI" style agate beads are made to resemble beads first found in India between 1000 and 2000 BCE. These reproductions are desi...

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Original price $14.00 - Original price $14.00
Original price $14.00
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Current price $14.00

Black Eye Agate 10mm Round 15-16 Inch

Original price $19.00 - Original price $19.00
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Black Eye Agate is a variety of Sardonyx which has a Sard base, typically of brown or black, with bands of white Onyx running through it. Sard is n...

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Black Eye Agate 6mm Round 15-16 Inch

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Black Eye Agate is a variety of Sardonyx which has a Sard base, typically of brown or black, with bands of white Onyx running through it. Sard is n...

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Original price $14.00 - Original price $14.00
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Black Eye Agate 8mm Round 15-16 Inch

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Black Eye Agate is a variety of Sardonyx which has a Sard base, typically of brown or black, with bands of white Onyx running through it. Sard is n...

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Original price $18.00 - Original price $18.00
Original price $18.00
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Black Opal Australian, Faceted 3mm Round - 15-16 Inch

Original price $40.00 - Original 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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Black Opal Australian, Faceted 4mm Round - 15-16 Inch

Original price $48.00 - Original 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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Black Silver Leaf Jasper 8mm Round 15-16

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Black Silverleaf Jasper is a rare form of Jasper, characterized by its color range of black, gray and white and its swirling, leafy patterns. It is...

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Black Spinel 10mm Natural Round - 15-16 Inch

Original price $46.00 - Original price $46.00
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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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Black Spinel 3mm Natural Round - 15-16 Inch

Original price $12.00 - Original price $12.00
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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 $12.00 - Original price $12.00
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Black Spinel 4mm Faceted Round - 15-16 Inch

Original price $15.00 - Original 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
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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
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Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch

Original price $48.00 - Original price $48.00
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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 $48.00 - Original price $48.00
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Black Spinel 6mm Round - 15-16 Inch

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

Original price $37.00 - Original 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...

View full details
Original price $37.00 - Original price $37.00
Original price $37.00
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Black Spinel 8mm Faceted Round - 15-16 Inch

Original price $42.00 - Original price $42.00
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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 $42.00 - Original price $42.00
Original price $42.00
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Black Tourmalinated Quartz 10mm Round - 15-16 Inch

Original price $24.00 - Original 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 6mm Round 15-16 Inch

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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
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Black Tourmalinated Quartz 8mm Round 15-16 Inch

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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 A 3mm Round - 15-16 Inch

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Black Tourmaline 10mm Round - 15-16 Inch

Original price $24.00 - Original 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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Black Tourmaline 4x6mm Table Cut Corner Drilled Cube Bead - 15-16 Inch

Original price $30.00 - Original 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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Blood Quartz 10mm Round Grade A 15-16 Inch

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Everything you loved about Blood Quartz is magnified in the A-Grade version of the material. The quality and transparency of the Quartz almost make...

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Blood Quartz 2mm Banded Faceted Cube 15-16 Inch

Original price $18.00 - Original 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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Blood Quartz 4mm Faceted Round - 15-16 Inch

Original price $20.00 - Original 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
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Bloodstone 8mm Round 15-16 Inch

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

Original price $19.00 - Original 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
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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
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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
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
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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
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Bloodstone 4mm Round 15-16 Inch

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

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
Original price $11.00
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Bloodstone 6mm Round 15-16 Inch

Original price $12.00 - Original price $12.00
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Current price $12.00

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

Blue Apatite 4mm Cube Table Cut - 15-16 Inch

Original price $32.00 - Original price $32.00
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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 $32.00 - Original price $32.00
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Blue Apatite 4mm Faceted Coin 15-16 Inch

Original price $26.00 - Original 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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Original price $26.00 - Original price $26.00
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Blue Apatite 4x6mm Rondelle Faceted - 15-16 Inch

Original price $37.00 - Original price $37.00
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Current price $37.00

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 $37.00 - Original price $37.00
Original price $37.00
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Blue Apatite 6x8mm Tri Cut Faceted Rondelle A Grade - 15-16 Inch

Original price $39.00 - Original price $39.00
Original price $39.00
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Current price $39.00

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 $39.00 - Original price $39.00
Original price $39.00
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Current price $39.00

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

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

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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Blue Apatite 8mm Round Faceted - 15-16 Inch - CLEARANCE

Original price $37.00 - Original price $37.00
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Current price $37.00

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...

View full details
Original price $37.00 - Original price $37.00
Original price $37.00
$37.00
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Current price $37.00

Blue Apatite 8x10mm Tri Cut Faceted Rondelle - 15-16 Inch

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

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
Original price $43.00
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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

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
Original price $26.00
$26.00
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Current price $26.00

Blue Apatite Natural 6-7mm Table Cut Cube A Grade Bead - 15-16 Inch

Original price $39.00 - Original price $39.00
Original price $39.00
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Current price $39.00

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 $39.00 - Original price $39.00
Original price $39.00
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Blue Chalcedony (Marbled) 6mm Round 15-16 Inch

Original price $26.00 - Original 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 Lace Agate 4mm Faceted Coin 15-16 Inch

Original price $26.00 - Original price $26.00
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Current price $26.00

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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Original price $26.00 - Original price $26.00
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Blue Moonstone 2mm Cube Table Cut - 15-16 Inch

Original price $18.00 - Original price $18.00
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Current price $18.00

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 $18.00 - Original price $18.00
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Blue Moonstone 6mm Coin Faceted - 15-16 Inch

Original price $37.00 - Original price $37.00
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Current price $37.00

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 $37.00 - Original price $37.00
Original price $37.00
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Current price $37.00

Blue Moonstone 6mm Double Heart Faceted - 15-16 Inch

Original price $38.00 - Original price $38.00
Original price $38.00
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Current price $38.00

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...

View full details
Original price $38.00 - Original price $38.00
Original price $38.00
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Current price $38.00

Frequently asked questions

  • What is a 16-inch strand and why is it the trade standard?
    A 16-inch strand is the working length most US jewelry designers buy for design-grade work — necklaces, multi-strand layouts, and bulk component sourcing. It gives enough beads to lay out a full 18–20 inch necklace with clasp and findings, or to cut down into shorter assemblies without running short. The 16-inch length has been the trade default for decades because it standardizes pricing and bead-count math across stones and cuts. Dakota's 16-inch hub covers the full catalog at this length, across rounds, rondelles, faceted cuts, cubes, coins, and shape work. The bracelet counterpart is the 8-inch strand.
  • How many beads per 16-inch strand at common sizes?
    Approximate bead counts per 16-inch strand assume snug-strung beads with no spacer drift. At 2mm you get roughly 200 beads, at 3mm about 135, at 4mm about 100, at 6mm about 66, at 8mm about 50, at 10mm about 40, and at 12mm about 33. Faceted cuts, rondelles, and irregular shapes (pebble, nugget, coin) vary — count is driven by the bead's drilled axis, not its widest dimension. Exact count should be disclosed; ask before buying if a piece-count is critical for your design and isn't specified.
  • 16-inch vs 8-inch — which length for which project?
    16-inch is the necklace and design-strand length: enough material for an 18–20 inch finished necklace, multi-strand torsades, long earring drops, or component cutting. 8-inch is the bracelet length: pre-cut to the wrist standard, sized for stretch-cord bracelets and single-wrap pieces. Designers running production bracelet lines typically buy 8-inch to skip the cut-down step; designers doing necklace work, statement pieces, or mixed assemblies buy 16-inch for the bead count and pricing efficiency. Both lengths share the same stones and cuts where stocked — the choice is about finished-piece geometry, not material grade.
  • What stones and cuts does Dakota carry in 16-inch?
    The 16-inch hub spans the full catalog. Most-stocked stones include agate, turquoise, quartz, jasper, tourmaline, moonstone, garnet, labradorite, opal, and amazonite, with deeper coverage across feldspar, chalcedony, and silica varieties. Cut coverage runs from smooth round and faceted round (the largest categories) through rondelle, microfaceted round, pebble and nugget, cube, table-cut cube, faceted cube, and coin. Standard sizes are 4mm, 6mm, 8mm, and 10mm, with 2mm and 3mm in microfaceted work and 12mm in larger statement rounds. Filter by stone, cut, or size to narrow the grid.
  • How does Dakota measure 16-inch strand lengths?
    Strand length is measured end-to-end along the drilled axis, beads strung snug with no gaps. A 16-inch strand can run 15.5 to 16.5 inches depending on bead shape and how the cutter finished the temporary string — irregular shapes (nugget, pebble, raw-faceted) sit at the looser end because the drill points don't always center on the bead's midline. Bead count per strand reflects this variance. Length and approximate count should be disclosed; if you need a tight tolerance for a calibrated production run, ask before buying so the team can pull and measure before shipping.