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, 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... -
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... -
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... -
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! -
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 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...