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Black Onyx

Embrace bold elegance with our 925 Sterling Silver Black Onyx Jewelry, featuring genuine black onyx gemstones with their deep, striking hue. Each piece is crafted from high-quality sterling silver, perfect for adding sophistication and a statement touch to your everyday look or special occasions.

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91 products

Save £16.00925 Silver Oval Black Onyx Ring
925 Silver Oval Black Onyx Ring Sale price£63.00 GBP Regular price£79.00 GBP
Save £15.00The Night Scroll: Black Onyx Silver Filigree Ring
The Night Scroll: Black Onyx Silver Filigree Ring Sale price£62.00 GBP Regular price£77.00 GBP
Save £7.00The Midnight Drop: Black Onyx & Silver Teardrop Earrings
The Midnight Drop: Black Onyx & Silver Teardrop Earrings Sale price£30.00 GBP Regular price£37.00 GBP
Save £36.00The Fire Ring: Carnelian Black Onyx Drop Silver Pendant
The Fire Ring: Carnelian Black Onyx Drop Silver Pendant Sale price£144.00 GBP Regular price£180.00 GBP
Save £17.00A 925 Sterling Silver Triple Black Onyx Pendant with three black onyx gemstones arranged in a cascading drop design, set against a neutral background.
925 Sterling Silver Triple Black Onyx Pendant Sale price£67.00 GBP Regular price£84.00 GBP
Save £26.00An oval black onyx gemstone pendant set in a 925 sterling silver mounting, displayed against a light background.
925 Sterling Silver Oval Black Onyx Pendant Sale price£107.00 GBP Regular price£133.00 GBP
Save £12.00925 silver oval black onyx ring
925 Silver Oval Black Onyx Ring Sale price£52.00 GBP Regular price£64.00 GBP
Save £37.00925 Silver Oval Black Onyx & Filigree Link Bracelet
925 Silver Oval Black Onyx & Filigree Link Bracelet Sale price£149.00 GBP Regular price£186.00 GBP
Save £28.00925 Silver Onyx and Citrine Ring
925 Silver Onyx and Citrine Ring Sale price£110.00 GBP Regular price£138.00 GBP
Save £14.00925 Silver Black Onyx Dangle Earrings
925 Silver Black Onyx Dangle Earrings Sale price£53.00 GBP Regular price£67.00 GBP
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Save £63.00925 Silver Black Onyx Cuff Bracelet
925 Silver Black Onyx Cuff Bracelet Sale price£254.00 GBP Regular price£317.00 GBP
Save £43.00925 Silver & Black Onyx Circle Link Statement Bracelet
925 Silver & Black Onyx Circle Link Statement Bracelet Sale price£177.00 GBP Regular price£220.00 GBP
Save £10.00The Solar Flight: Gold Sunburst & Feather Drop Earrings
The Solar Flight: Gold Sunburst & Feather Drop Earrings Sale price£40.00 GBP Regular price£50.00 GBP
Save £17.00The Onyx Starburst: Celestial Flame Pendant
The Onyx Starburst: Celestial Flame Pendant Sale price£69.00 GBP Regular price£86.00 GBP
Save £10.00The Sleek Shadow: Black Onyx Marquise Ring
The Sleek Shadow: Black Onyx Marquise Ring Sale price£40.00 GBP Regular price£50.00 GBP
The Regal Violet: Amethyst & Moissanite Halo Ring
The Regal Violet: Amethyst & Moissanite Halo Ring Sale price£91.00 GBP Regular price£113.00 GBP
Save £11.00The Onyx Square : Black Onyx Pendant Necklace
The Onyx Square : Black Onyx Pendant Necklace Sale price£44.00 GBP Regular price£55.00 GBP
Save £19.00925 silver and gold plated black onyx ring in gift box
The Onyx Quad Shield: Two-Tone Square Geometric Ring Sale price£77.00 GBP Regular price£96.00 GBP
Save £32.00The Monochrome Strand: Onyx & Crystal Station Necklace
The Monochrome Strand: Onyx & Crystal Station Necklace Sale price£130.00 GBP Regular price£162.00 GBP
Save £15.00The Midnight Teardrop: Black Onyx Dotted Scroll Filigree Silver Pendant
The Midnight Teardrop: Black Onyx Dotted Scroll Filigree Silver Pendant Sale price£43.00 GBP Regular price£58.00 GBP
Save £14.00The Midnight Square: Inlay Black Onyx Ring
The Midnight Square: Inlay Black Onyx Ring Sale price£61.00 GBP Regular price£75.00 GBP
Save £10.00The Midnight Linear Drops: Black Spinel Bar Earrings
The Midnight Linear Drops: Black Spinel Bar Earrings Sale price£41.00 GBP Regular price£51.00 GBP
Save £11.00The Midnight Ellipse: Black Onyx Solitaire Ring
The Midnight Ellipse: Black Onyx Solitaire Ring Sale price£47.00 GBP Regular price£58.00 GBP
Save £34.00The Midnight Duo: Articulated Black Onyx Locket Style Pendant
The Midnight Duo: Articulated Black Onyx Locket Style Pendant Sale price£137.00 GBP Regular price£171.00 GBP
Save £11.00The Midnight Duality: Lapis Lazuli & Black Onyx Bracelet
The Midnight Duality: Lapis Lazuli & Black Onyx Bracelet Sale price£45.00 GBP Regular price£56.00 GBP
Save £14.00The Midnight Dash: Black Onyx Tube Station Necklace
The Midnight Dash: Black Onyx Tube Station Necklace Sale price£50.00 GBP Regular price£64.00 GBP
Save £15.00The Midnight Cushion: Sleek Modern Solitaire
The Midnight Cushion: Sleek Modern Solitaire Sale price£59.00 GBP Regular price£74.00 GBP
Save £16.00Silver ring with a black gemstone on a beige background
The Midnight Curve: Black Onyx Wide Band Silver Ring Sale price£65.00 GBP Regular price£81.00 GBP
Save £11.00The Midnight Bloom: Sequin Chain Flower Necklace
The Midnight Bloom: Sequin Chain Flower Necklace Sale price£46.00 GBP Regular price£57.00 GBP
Save £22.00The Lattice Oval: Black Onyx Filigree Silver Pendant
The Lattice Oval: Black Onyx Filigree Silver Pendant Sale price£91.00 GBP Regular price£113.00 GBP
Save £26.00The Emerald Drop: Green Onyx Station Chain Necklace
The Emerald Drop: Green Onyx Station Chain Necklace Sale price£102.00 GBP Regular price£128.00 GBP
Save £9.00The Diamond Window: Black Onyx Filigree Pendant
The Diamond Window: Black Onyx Filigree Pendant Sale price£33.00 GBP Regular price£42.00 GBP
Save £12.00The Bold Onyx: High Dome Statement Ring
The Bold Onyx: High Dome Statement Ring Sale price£49.00 GBP Regular price£61.00 GBP
Save £11.00A round black onyx gemstone pendant set in a sterling silver mounting with intricate vintage-style detailing.
925 Sterling Silver Vintage Black Onyx Round Pendant Sale price£45.00 GBP Regular price£56.00 GBP
Save £21.00A vintage-inspired sterling silver pendant featuring black onyx and mother of pearl
925 Sterling Silver Vintage Black Onyx & Mother of Pearl Pendant Sale price£86.00 GBP Regular price£107.00 GBP
Save £14.00Decorative metal rack with black and gold balls on a neutral background
925 Sterling Silver Onyx & Citrine Abstract Geometric Pendant Sale price£58.00 GBP Regular price£72.00 GBP
Save £12.00A sterling silver marquise black onyx filigree teardrop pendant on a white background.
925 Sterling Silver Marquise Black Onyx Filigree Teardrop Pendant Sale price£50.00 GBP Regular price£62.00 GBP
Save £21.00925 Sterling Silver Large Round Faceted Black Onyx Pendant
925 Sterling Silver Large Round Faceted Black Onyx Pendant Sale price£86.00 GBP Regular price£107.00 GBP
Save £15.00A heart-shaped black onyx gemstone pendant with a polished silver setting, displayed against a light background.
925 Sterling Silver Heart Black Onyx Pendant Sale price£60.00 GBP Regular price£75.00 GBP
Save £9.00A 925 Sterling Silver Black Onyx gemstone set in a star-shaped pendant, displayed against a neutral background.
925 Sterling Silver Black Onyx Star Pendant Sale price£34.00 GBP Regular price£43.00 GBP
Save £12.00A 925 sterling silver ring with a floral-inspired design featuring a bold black onyx gemstone at the center, displayed on a beige background.
925 Sterling Silver Black Onyx Floral Statement Ring Sale price£49.00 GBP Regular price£61.00 GBP
Save £14.00925 Sterling Silver Black Onyx Dangle Earrings
925 Sterling Silver Black Onyx Dangle Earrings Sale price£57.00 GBP Regular price£71.00 GBP
Save £8.00925 Sterling Silver Black Onyx Cushion-Cut Drop Earrings
925 Sterling Silver Black Onyx Cushion-Cut Drop Earrings Sale price£33.00 GBP Regular price£41.00 GBP
Save £62.00925 Silver Wide Cuff Bracelet
925 Silver Wide Cuff Bracelet Sale price£249.00 GBP Regular price£311.00 GBP
Save £14.00925 Silver Triple Black Onyx Ring
925 Silver Triple Black Onyx Ring Sale price£57.00 GBP Regular price£71.00 GBP
Save £8.00925 Silver Triple Black Onyx Ring
925 Silver Triple Black Onyx Ring Sale price£33.00 GBP Regular price£41.00 GBP
Save £6.00925 Silver Triple Black Onyx Ring
925 Silver Triple Black Onyx Ring Sale price£26.00 GBP Regular price£32.00 GBP
Save £13.00925 Silver Textured Hoop Black Onyx Stud Earrings
925 Silver Textured Hoop Black Onyx Stud Earrings Sale price£55.00 GBP Regular price£68.00 GBP

Black Onyx Jewelry — Sleek, Jet-Black Elegance in 925 Sterling Silver

Black onyx is the quiet powerhouse of the jewelry box. Its deep, even, jet-black surface polishes to a glassy shine that flatters every skin tone and pairs with everything you own. Every piece in this collection is set by hand in solid 925 sterling silver, pairing that bold black with a metal made to last.


Why Black Onyx?

Black onyx is a variety of chalcedony — a microcrystalline form of quartz — prized for thousands of years for its smooth, opaque, and remarkably even color. Where many stones are valued for sparkle or fire, onyx is loved for the opposite: a calm, confident depth that reads as effortlessly modern. Historically it's been linked to strength, protection, and focus, carried as a grounding stone across ancient Greek, Roman, and many other cultures. Durable, versatile, and endlessly elegant, black onyx is as at home with a tailored suit as it is with a summer dress.


The Ultimate Go-With-Everything Stone

If you own one colored stone that works with every outfit, every season, and every other piece of jewelry, it should be black onyx. It sharpens crisp white, deepens jewel tones, anchors metallics, and lends instant polish to the most casual look — which is exactly why it's a wardrobe staple rather than an occasional piece.


Styling Tips

  • Everyday edge: A small black onyx stud or pendant adds sleek, minimalist contrast that elevates any outfit — from office wear to weekend casual.
  • Statement black: A larger onyx on a ring or drop earring makes a bold, graphic focal point, especially against white, red, or metallic tones.
  • Color pairing: Black onyx is a true neutral — it works with every color, but looks especially striking against white, jewel tones, and bright metallics.
  • Mixing metals: Crisp and contemporary in sterling silver; it also looks sharp and luxe against gold for a higher-contrast, modern look.
  • Layering: Stack delicate onyx pieces for a tonal, monochrome effect, or use a single onyx piece to ground a colorful, mixed-stone stack.


Caring for Your Black Onyx Jewelry

Black onyx is durable but porous, so gentle care keeps it looking its best. Clean with a soft, slightly damp cloth and dry thoroughly — and avoid soaking, harsh chemicals, ultrasonic cleaners, and prolonged sun exposure, which can dull the surface over time. Store your onyx pieces separately so the silver setting doesn't scratch against other jewelry. (For the full routine, see our [sterling silver cleaning guide].)


Crafted by AG925

Each piece is made in our workshop in India, where traditional silversmithing meets clean, modern design. We hand-select every black onyx for evenness of color and depth of polish, then finish each setting individually — so the gem in the photo is the standard you'll receive, not the exception.