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.