Architectural, sleek and dressed entirely in black. This black onyx ring frames a generous emerald-cut natural onyx — its long, mirror-flat table pooling with deep glossy jet-black color — on a clean sterling silver band lined with simulated diamonds. Nickel-free, hypoallergenic and comfort-fit, it is a refined, modern-gothic alternative engagement or statement ring for anyone who prefers shadow to sparkle alone.
Natural black onyx
Emerald step cut
Simulated diamond accents
Solid 925 sterling silver
Rhodium finish
Nickel-free & hypoallergenic
The emerald-cut black onyx
The center is a substantial natural black onyx, cut in an elegant emerald step cut that measures roughly 8.0 x 6.0 mm and reads around 1.5 carats on the finger. Onyx is a natural chalcedony treasured for its dense, opaque, deep glossy jet-black color, and the emerald cut — with its long parallel facets and truncated corners — shows that darkness at its most polished and hall-of-mirrors clean. At around 6.5–7 on the Mohs scale, it is a firm, wearable stone. See the full range in our black onyx engagement rings collection, and learn what draws people to it in our overview of black gemstones.
Simulated diamond accents
Flanking the onyx, a line of simulated diamonds (cubic zirconia) adds a crisp flash of white sparkle that throws the depth of the black into sharp relief. It is a bright, budget-friendly way to bring classic ring shimmer to a dark design without overpowering the center stone. Prefer a lab-grown diamond or moissanite upgrade instead? Message us — most of our designs can be tailored.
Modern gothic, minimalist edge
Stripped of ornament, the ring lets pure geometry and deep color do the talking — a look that sits naturally among our gothic engagement rings. The wedding band is sold separately, so you can build the pairing that suits you; our black onyx wedding bands are designed to nest cleanly against this profile. For more on how these pieces are worn and what they mean, our edit on black rings for women is a great read.
Solid sterling silver with a rhodium finish
The ring is crafted in solid 925 sterling silver and finished with rhodium — the same precious metal used on fine white-gold jewelry. That rhodium layer gives the silver a bright, mirror-white luster and adds a protective shield against tarnish and everyday scratches. The metal is nickel-free and hypoallergenic, with a comfort-fit interior for easy all-day wear, and genuine 925 sterling silver will not turn your skin green.
What black onyx symbolizes
Black onyx has been worn for centuries as a stone of protection, grounding and steady willpower — a quiet armor against distraction and doubt. That symbolism makes it a genuinely meaningful choice for a non-traditional engagement, promise or milestone ring, standing for a love that keeps its composure. To trace where its dramatic, romantic styling comes from, our guide to black onyx meaning is a rich place to begin.
Specifications
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Metal Solid 925 sterling silver with rhodium finish
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Center stone Natural black onyx, emerald cut (approx. 8.0 x 6.0 mm, ~1.5 ct)
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Center hardness Mohs ~6.5–7
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Accents Simulated diamonds (cubic zirconia)
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Comfort 100% nickel-free, hypoallergenic, comfort fit
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Wedding band Sold separately
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Style Modern gothic, minimalist
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Sourcing Ethically sourced, conflict-free stones
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Included Free luxury velvet gift box & lifetime warranty
Sizing & care
Choose your size at checkout. If you are between sizes or unsure, we are happy to help, and if the fit is not quite right, resizing is available and starts from a modest fee. To keep the onyx and rhodium finish at their brightest, remove the ring before showering, swimming or applying lotions and perfumes, and store it in the velvet box when not worn. A soft, dry cloth restores the shine. With gentle care, this is a ring made to be worn every day.
Frequently asked questions
Is the black onyx natural?
Yes. The center is natural black onyx, a genuine form of chalcedony known for its dense, opaque, deep jet-black color and glossy polish. It is a real natural stone, not simulated.
What is the emerald cut?
An emerald cut is a rectangular step cut with truncated corners and long parallel facets. On black onyx it creates a clean, mirror-flat surface that shows the deep color at its most polished and dramatic.
What are the sparkling accent stones?
They are simulated diamonds (cubic zirconia), set to add a crisp line of white sparkle against the black. If you would prefer a lab-grown diamond or moissanite upgrade, reach out and we will tailor it for you.
How durable is black onyx?
Black onyx sits around 6.5 to 7 on the Mohs scale, making it well suited to everyday wear with normal care. Avoid hard knocks and remove the ring for rough activities to keep the polish pristine.
Is the ring hypoallergenic?
Yes. It is crafted in solid 925 sterling silver that is 100% nickel-free and hypoallergenic, with a comfort-fit interior for easy all-day wear.
What metal is it made from?
Solid 925 sterling silver, finished with rhodium for a bright white luster and extra protection against tarnish and scratches.
What does the rhodium finish do?
Rhodium is the same precious metal used to finish fine white gold. It gives the silver a mirror-bright, white-gold-like shine and adds a protective layer that helps the ring stay looking freshly polished.
Will it turn my finger green?
No. Genuine 925 sterling silver does not turn skin green; that reaction is associated with low-quality or fake metals, not the real sterling silver used here.
Does it come with a matching band?
The wedding band is sold separately, so you can choose the pairing that suits you. Our black onyx wedding bands are designed to nest cleanly against this ring's profile.
Can I wear it as an engagement ring?
Absolutely. Its bold emerald-cut onyx center makes it a striking non-traditional engagement ring, promise ring or statement piece for anyone who loves a darker, minimalist look.
How do I care for the ring?
Remove it before showering, swimming or applying lotions and perfumes, store it in the velvet box, and buff with a soft dry cloth to restore shine. Gentle care keeps the onyx and rhodium finish luminous.
What size should I order?
Select your ring size at checkout. If you are unsure or between sizes, contact us for guidance. Resizing is available and starts from a modest fee.
Are the stones ethically sourced, and does it arrive gift-ready?
Yes to both. All of our stones are ethically sourced and conflict-free, and every ring ships in a free luxury velvet gift box backed by our lifetime warranty — ready for gifting or proposing.