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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.

Flower Jade 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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Flower Jade is a form of Jadeite, a sodium aluminum silicate and one of the two minerals that are commonly known as “Jade,” the other being Nephrit...

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Rainbow Obsidian 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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Rainbow Obsidian earned its name from the chatoyant, rainbow effect of light refracting off of the air buddles inside of the stone. Like all obsidi...

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Prehnite with Rutilate 8mm Round - 15-16 Inch

Original price $21.00 - Original price $21.00
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Current price $21.00
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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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Polychrome Jasper 8mm Round - 15-16 Inch

Original price $14.00 - Original price $14.00
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Polychrome Jasper is considered one of the rarest Jaspers in the world. First discovered in 2006, it is exclusively sourced from a single small dep...

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Red Jasper 8mm Round - 15-16 Inch

Original price $12.00 - Original price $12.00
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Current price $12.00
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Red Jasper is an aggregate of microcrystalline quartz and/or chalcedony and other minerals. The opaque stone’s red color is due to high iron conten...

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Porcelain Jasper 8mm Round - 15-16 Inch

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Porcelain Jasper is a brecciated (broken) Jasper originally found on a gold claim high in the Sierra Madre mountains of Mexico, where it continues ...

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Pink Opal 8mm Round A Grade - 15-16 Inch

Original price $33.00 - Original price $33.00
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Current price $33.00
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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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Golden Tiger Eye with Yellow and Blue 8mm Round - 15-16 Inch

Original price $17.00 - Original price $17.00
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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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Red Tiger Eye 8mm Round - 15-16 Inch

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Red Tiger Eye is actually Brown Tiger Eye which has been heat treated to bring out the red color. This macrocrystalline Quartz stone has chatoyant ...

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Golden Obsidian 8mm Round - 15-16 Inch

Original price $11.00 - Original price $11.00
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Current price $11.00
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Golden Obsidian is a naturally occurring volcanic glass, shiny black with a golden sheen. Obsidian is produced when lava erupts from a volcano and ...

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Silver Crazy Lace Agate 8mm Round - 15-16 Inch

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Silver Crazy Lace Agate is a naturally occurring form of Crazy Lace Agate, a banded Chalcedony that is predominantly white with layers of brown, gr...

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Fluorite 8mm Round A Grade - 15-16 Inch

Original price $20.00 - Original price $20.00
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Fluorite is a luminous, soft and glassy stone, sometimes referred to as “the most colorful mineral in the world.” It is one of the most sought to a...

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Blue Moonstone 8mm Round AA Grade - 15-16 Inch

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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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Pink Rhodochrosite With Matrix 8mm Round - 15-16 Inch

Original price $40.00 - Original price $40.00
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Rhodochrosite is a bubblegum pink to rose red stone, with occasional inclusions of creamy white and dark grey. A manganese carbonate material of th...

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Rainbow Ocean Agate 8mm Round A Grade - 15-16 Inch

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Strawberry Quartz Cherry 8mm Round A Grade - 15-16 Inch

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Strawberry Quartz is a translucent, milky to pink silicon dioxide mineral. Its needle to like inclusions of hematite are iridescent red. Quartz has...

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Thulite 8mm Round AA Grade - 15-16 Inch

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Thulite is the naturally occurring pink variety of the mineral Zoisite. It can range in color from pale pink to deep rose or even rusty red tones d...

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Ametrine 8mm Round A Grade - 15-16 Inch

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Ametrine is quartz that occurs in bands of purple and yellow. As the name suggests, it is a combination of Amethyst and Citrine. The different colo...

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Kyanite Multi 8mm Round - 15-16 Inch

Original price $54.00 - Original price $54.00
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Kyanite often occurs as long, bladed, striated crystals, transparent or translucent with a pearly luster. An aluminum silicate mineral, it may appe...

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Rose Quartz 8mm Round A Grade - 15-16 Inch

Original price $31.00 - Original price $31.00
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Rose Quartz is a silicon dioxide crystal and one of the most common varieties of the Quartz family. It is a translucent to transparent stone with a...

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Strawberry Quartz 8mm Round AA Grade - 15-16 Inch

Original price $26.00 - Original price $26.00
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Strawberry Quartz is a translucent, milky to pink silicon dioxide mineral. Its needle to like inclusions of hematite are iridescent red. Quartz has...

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Black Web Jasper 8mm Round - 15-16 Inch

Original price $8.00 - Original price $8.00
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Jasper has a long and illustrious history, having been worn by shamans, priests and kings and believed to be a powerful protection stone. Ancient E...

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Azurite 8mm Round AA Grade - 15-16 Inch

Original price $85.00 - Original price $85.00
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Azurite is a Copper carbonate mineral that forms in masses, stalactites, botryoidal, and short prismatic crystals. Azurite in crystal form is extre...

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Blue Hackmanite 10mm Round - 15-16 Inch

Original price $45.00 - Original price $45.00
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Discovered in Greenland in the late 1890's, hackmanite is named for Finnish geologist Victor Hackman. It is a rare occurrence to find gem-grade hac...

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Blue Hackmanite 8mm Round - 15-16 Inch

Original price $31.00 - Original price $31.00
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Discovered in Greenland in the late 1890's, hackmanite is named for Finnish geologist Victor Hackman. It is a rare occurrence to find gem-grade hac...

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GoldStone 8mm Round - 15-16 Inch

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Goldstone is a manmade material, consisting of opaque rust-red glass with tiny flecks of glittering copper suspended within it. Goldstone was first...

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Crystal Quartz 6x8mm Triangle Cut Faceted Rice Bead - 15-16 Inch

Original price $27.00 - Original price $27.00
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Crystal Quartz is a naturally occurring clear and colorless Quartz. It is a crystalline form of Quartz said to have many divine properties includin...

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Purple Fluorite 8mm Round A Grade- 15-16 Inch

Original price $34.00 - Original price $34.00
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Fluorite is a luminous, soft and glassy stone, sometimes referred to as “the most colorful mineral in the world.” It is one of the most sought to a...

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Peruvian Turquoise (Chrysocolla) 8mm Round A Grade - 15-16 Inch

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Peruvian Turquoise is also known as Turquoise Chrysocolla. It’s attractive blue-green provides a unique color to the mineral world. Peruvian Turquo...

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Peruvian Chrysocolla 8mm Round A Grade - 15-16 Inch

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Chrysocolla, a hydrous copper silicate, is often mistaken for turquoise due to its rich blues and blue to greens. It often also occurs with colors ...

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Purple Flower Fluorite 8mm Round - 15-16 Inch

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Fluorite is a luminous, soft and glassy stone, sometimes referred to as “the most colorful mineral in the world.” It is one of the most sought to a...

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Green and White Jade 8mm Round - 15-16 Inch

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Jade refers to an ornamental mineral, mostly known for its green varieties. Jade has been used for tens of thousands of years, initially as tools b...

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Orange Calcite 8mm Round AAA Grade - 15-16 Inch

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Calcite is a rock-forming mineral that is extremely common and found throughout the world in sedimentary, metamorphic, and igneous rocks. Calcite i...

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Arusha Sunstone 8mm Round - 15-16 Inch

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Arusha Sunstone is a combination of Feldspar and Beryl.

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Madagascar Green Dendritic Opal 8mm Round - 15-16 Inch

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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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Ruby and Sapphire 8mm Faceted Round A Grade - 15-16 Inch

Original price $80.00 - Original price $80.00
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Ruby has long been considered one of the most beautiful and valuable gemstones on the planet. It is also one of the hardest, second only to Diamond...

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Emerald 8x5-7mm Tube A Grade - 15-16 Inch

Original price $180.00 - Original price $180.00
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Emerald is one of the four “precious” gemstones, the others being Diamond, Ruby and Sapphire. It is the green form of Beryl, colored by trace amoun...

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Hematoid Quartz Copper 8mm Round - 15-16 Inch

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Hematoid Quartz is Quartz with inclusions of hematite. The hematite inclusions are responsible for the stone’s color, which can be yellow, orange, ...

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Silver Grey Mixed Moonstone 8mm Round - 15-16 Inch

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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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Hemimorphite 8mm Round - 15-16 Inch

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Most hemimorphite is found in the rocks above and surrounding zinc deposits. Hemimorphite is a favorite collector gem because it occurs in a range...

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Blue Moonstone 8mm Round AAA Grade - 15-16 Inch

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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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Silver Grey Moonstone 8mm Round A Grade - 15-16 Inch

Original price $32.00 - Original price $32.00
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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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Selenite 8mm Round Rainbow (Dyed) - 15-16 Inch

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Selenite is a crystal formed from the mineral gypsum, which comes in many forms and color variations, but has been used historically to describe th...

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Selenite 8mm Round Lime Pink (Dyed) - 15-16 Inch

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Selenite is a crystal formed from the mineral gypsum, which comes in many forms and color variations, but has been used historically to describe th...

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Selenite 8mm Round Green Purple (Dyed) - 15-16 Inch

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Selenite is a crystal formed from the mineral gypsum, which comes in many forms and color variations, but has been used historically to describe th...

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Blue Tiger Eye 8mm Round AAA Grade - 15-16 Inch

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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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Poppy Jasper 8mm Round - 15-16 Inch

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Jasper has a long and illustrious history, having been worn by shamans, priests and kings and believed to be a powerful protection stone. Ancient E...

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Red Porcelain Jasper 8mm Round - 15-16 Inch

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Porcelain Jasper is a brecciated (broken) Jasper originally found on a gold claim high in the Sierra Madre mountains of Mexico, where it continues ...

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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.