Stunning black onyx beads, gemstone donuts, and pendants work for a wide variety of jewelry applications from everyday wear to formal attire. As with nearly all black onyx on the market, these semiprecious beads have been rendered a uniform, permanent black color with a treatment using sugar and acid (and/or heat). This process has been used on the gemstone for thousands of years and is water safe. Learn more about Onyx in our Gemstone Index.
Black Stone beads and pendants provide basic black gemstones that will perpetually remain in style! This semiprecious gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest descriptive name we can give to these beads and pendants. Black stone jewelry components generally appear less shiny than black onyx components.
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Black Onyx Gemstone Donut, 50mm (Each)
$5.00Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Stone Beads, 8x12mm Puffed Oval (strand)
$4.50This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Black Stone 2x4mm Gemstone Heishi Beads (strand)
$7.65Black Stone beads provide basic black gemstones that will perpetually remain in style! This semiprecious gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest descriptive... -
Black Onyx Gemstone Donut, 30mm (Each)
$5.61Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Matte Black Stone Beads, Round, 4mm (strand)
$3.00This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Black Onyx Gemstone Beads, Round, 3mm (strand)
$4.80Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, Round, 8mm (strand)
$4.80Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Stone Beads, Round, 4mm (strand)
$2.81This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Black Stone Beads, Round, 6mm (strand)
$3.38This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Matte Black Stone Beads, Round, 8mm (strand)
$5.44This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Black Onyx Gemstone Beads, 6x4mm Faceted Rondelle (strand)
$10.80Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, Round, 4mm (strand)
$4.20Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Dakota Stones Onyx 8mm Faceted Roundel Bead Strand
Dakota Stones$13.95Shining black color combines with gleaming facets in these onyx 8mm faceted roundel beads from Dakota Stones. These rounded beads feature a glossy black color that is only enhanced by the diamond-shaped facets cut into their surface. Onyx is a variety of... -
Dakota Stones Onyx 8mm Round Bead Strand
Dakota Stones$8.77Put orbs of mysterious black color into your designs with the onyx 8mm round beads from Dakota Stones. These classic round beads feature a glossy black color that would complement silver components well. Onyx is a variety of chalcedony that is similar to... -
Matte Black Stone Beads, Round, 6mm (strand)
$3.00This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Black Onyx Gemstone Beads, 14mm Faceted Diamond-Shaped (strand)
$8.13Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, Faceted Round, 8mm (strand)
$8.44Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, Round, 10mm (strand)
$6.60Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Stone Beads, Tube, 3x5mm (strand)
$3.00This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Dakota Stones Matte Onyx 8mm Large-Hole Round Bead Strand
Dakota Stones$13.95Daring style fills these Dakota Stones beads. Available by the strand, these gemstone beads are perfectly round in shape, so you can use them in all kinds of styles. Each bead features a wide stringing hole, perfect for using with thicker stringing... -
Dakota Stones Onyx 6mm Round Bead Strand
Dakota Stones$7.67These onyx 6mm round beads from Dakota Stones are full of inky black shine. These classic round beads feature a glossy black color that is sure to make other colors pop. Onyx is a variety of chalcedony that is similar to agate, with straight rather than... -
Dakota Stones Onyx 6mm Faceted Round Bead Strand
Dakota Stones$9.05Mix it up in your designs with the unique onyx 6mm faceted round beads from Dakota Stones. Available by the strand, these small round beads feature facets cut into the surface for fun dimension and added shine. These beads feature a versatile size that... -
Black Onyx Gemstone Beads, 12x36mm Faceted Oval (strand)
$12.75Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Dakota Stones Onyx 10mm Round Bead Strand
Dakota Stones$8.95The enigmatic black color of the onyx 10mm round beads from Dakota Stones looks like it goes on forever. These classic round beads feature a glossy black color that has great depth to it. Onyx is a variety of chalcedony that is similar to agate, with... -
Black Onyx Gemstone Beads, 18x25mm Faceted Puffed Rectangle (strand)
$15.00Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, 6mm, Round with Large Hole (strand)
$3.60Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Stone Donut, 25mm (Each)
$1.58Please see the Related Products links below for similar items, and more information about this stone. Questions? E-mail us for friendly, expert help! -
Dakota Stones Matte Onyx 4mm Round Bead Strand
Dakota Stones$6.59Add accents of bold elegance to your designs with the matte onyx 4mm round beads from Dakota Stones. These small beads feature a solid shade of black with a soft, muted shine and a perfectly round shape. These are the perfect beads to pair with bright... -
Dakota Stones Onyx 6mm Faceted Roundel Bead Strand
Dakota Stones$13.95Like twinkles of light from stars surrounded by inky darkness, the onyx 6mm faceted roundels from Dakota Stones display black color interspersed with twinkling shine. These rounded beads feature a glossy black color that is only enhanced by the small... -
Black Onyx Gemstone Beads, 8mm Round with Large Hole (strand)
$4.32Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, 8x5mm Faceted Rondelle (strand)
$7.25Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, Faceted Round, 6mm (strand)
$7.23Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Beads, Round, 6mm (strand)
$4.20Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Onyx Gemstone Donut, 40mm (Each)
$5.10Onyx is a striped, semiprecious variety of agate, with white, black, brown or red alternating bands. It is different from regular agate only in that the bands of which it is composed are parallel and regular. The name onyx originates from the Greek word... -
Black Stone Gemstone Beads, Approximately 11x13mm Barrel (strand)
$7.88This semiprecious basic black gemstone closely resembles black onyx, but since we have been unable to verify its true classification, "black stone" is the most honest name we can give to these beads and pendants. Note that black stone jewelry components... -
Dakota Stones Matte Onyx 10mm Round Bead Strand
Dakota Stones$8.95Stand out with dramatic style using the matte onyx 10mm round beads from Dakota Stones. These bold beads feature an orb-like shape for a classic look. They are filled with black color and display a soft, muted shine. Their large size makes for a nice... -
Dakota Stones Matte Onyx 10x14mm Oval Bead Strand
Dakota Stones$10.95Complement your looks with elegant black color. These beads feature enigmatic black color and a matte finish with a subtle shine. These beads feature pleasing oval shapes that would look great in any design. Let these beads create striking contrast... -
Dakota Stones Matte Onyx 10x20mm Double Drill Bead Strand
Dakota Stones$17.35Grace your looks with enigmatic color using these Dakota Stones matte onyx beads. These beads feature exquisite black color and a matte finish for a softer look. These beads feature a rectangular shape and two drilled stringing holes, making them perfect... -
Dakota Stones Matte Onyx 6mm Round Bead Strand
Dakota Stones$7.67Give your designs touches of dark color with the matte onyx 6mm round beads from Dakota Stones. These beads are perfectly round in shape and feature black color with a muted shine. The versatile 6mm size is perfect for all kinds of jewelry designs and... -
Dakota Stones Matte Onyx 8mm Round Bead Strand
Dakota Stones$8.77You can create bold style with the matte onyx 8mm round beads from Dakota Stones. These spherical beads display a solid shade of black, the perfect color to add to designs to make brighter tones pop. The 8mm size works nicely in both necklaces and... -
Dakota Stones Onyx 6mm Roundel Bead Strand
Dakota Stones$10.95Mysterious shine adds to the overall beauty of the onyx 6mm roundel beads from Dakota Stones. These thin, cylindrical beads feature a glossy black color and they would work well as spacers in between larger, more colorful beads. Onyx is a variety of... -
Dakota Stones Onyx 8mm Faceted Round Bead Strand
Dakota Stones$9.95The onyx 8mm faceted round beads from Dakota Stones glitter darkly from every angle. These rounded beads feature a glossy black color that is only enhanced by the small hexagonal facets that cover their surface. Onyx is a variety of chalcedony that is... -
Dakota Stones Onyx 8mm Star Cut Round Bead Strand
Dakota Stones$18.45Keep your style bold with these Dakota Stones beads. These gemstone beads feature a round shape with a star cut filled with triangular facets. You'll love using these beads in matching necklace and bracelet sets. Onyx is a variety of chalcedony that is...