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Black Onyx Beads 6mm Round – Matte Finish

SKU: OYNX-6MM-RD

$723
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Lead time does not apply to custom orders.


6mm matte black onyx beads with a smooth, frosted finish. Durable chalcedony, perfect for modern, minimalist, and men’s jewelry designs with bold contrast.

Matte Black Onyx Round Beads – 6 mm

Create jewelry that feels timeless and intentional with these 6 mm matte black onyx beads. Their velvety, non-polished surface delivers a contemporary look that designers favor for both masculine and minimalist aesthetics. The matte finish softens the deep black tone, offering a refined alternative to high-gloss stones while maintaining bold visual presence.

Black onyx is a variety of chalcedony that has been traditionally treated to achieve its rich, consistent black color—a permanent and widely accepted practice in the gemstone trade for centuries. This results in durable, colorfast beads that hold their beauty over time without fading.

Why Designers Choose This Strand

  • Velvety matte finish for modern, tactile appeal
  • Deep, uniform black color that photographs beautifully
  • Versatile 6 mm size ideal for bracelets and layering
  • Durable quartz composition (Mohs 6.5–7) for everyday wear
  • Smooth drill holes for easy stringing and production work
  • Neutral foundation that pairs with metals and bright gemstones

Perfect For

  • Men's bracelets and unisex jewelry
  • Modern, architectural designs
  • Pairing with sterling silver, gold fill, or gunmetal
  • Grounding pieces that balance brighter gemstones
  • Spacer accents in luxury beadwork

Product Specifications

  • Material: Black Onyx (Chalcedony)
  • Shape: Round
  • Bead Size: 6 mm
  • Finish: Matte / Frosted
  • Color: Deep, uniform black
  • Strand Length: Approx. 15.5″–16″
  • Hole Diameter: Approx. 0.8–1.0 mm
  • Treatment: Traditionally enhanced for color (permanent)
  • Hardness: 6.5–7 Mohs
  • Sold As: Individual strand

Metaphysical Associations

Black onyx has long been valued as a stone of strength, protection, and focus. Traditionally associated with grounding and stability, confidence and inner resilience, protection from negative energy, and mental discipline and clarity. Because of its deep, neutral tone, it is often used as a balancing stone in both design and symbolism.

Design Insight

Matte black onyx photographs beautifully and resists fingerprints and glare, making it especially popular for today's natural-texture and luxury-minimal trends. It provides contrast without competing with focal stones like turquoise, lapis, or metalwork.

Care Instructions

Durable enough for everyday wear. Clean with a soft cloth and avoid harsh chemical cleaners to preserve the matte surface texture.