Deep, protective black and the endless line of a Celtic knot, worn on two hands. This Celtic black onyx couples ring set pairs a pear-cut onyx ring for her with a crushed-onyx tungsten band for him — a his-and-hers pairing for couples drawn to the dark, the romantic, and the ancient.
Natural black onyx
Pear cut
Celtic knotwork
Three-piece set
Sterling silver + tungsten
His & hers
Two rings, one love story
Some couples are made for candlelight and cathedrals rather than daylight and diamonds. This set is for them. Her pear-cut onyx ring and his crushed-onyx band are designed to be worn together — one of the most striking pairings in our collection of dark romance couple rings — yet each stands beautifully on its own as an engagement ring, a wedding band, or a promise. If you are still weighing options, our guide to the best matching rings for couples in 2026 is a lovely place to start.
Her Rings
Solid 925 sterling silver in a bright rhodium finish, hand-set with a pear-cut natural black onyx (approx. 6 x 8 mm, 1.5 ct) framed by cubic-zirconia accents, with a matching Celtic-knot band. Slim 1.5–1.6 mm each.
His Ring
An 8 mm comfort-fit tungsten carbide band inlaid with crushed natural black onyx — deep, matte, and quietly powerful.
The black onyx
Black onyx is a natural stone with a deep, glassy luster, long associated with strength, protection, and resilience — a fitting emblem for two lives intertwined. You can read its full story in our black onyx meaning guide. Here the center is a pear-cut natural onyx, hand-set for that saturated midnight depth, with brilliant cubic-zirconia accents catching the light around it.
Celtic knotwork
Woven through the set is Celtic knotwork — a line with no beginning and no end, an ancient symbol of eternal love and unity. It is the heart of what makes this one of our favorite gothic couple rings, and part of a wider world of gemstone couples rings designed to be worn as a pair.
Metals & everyday wear
Her ring is solid 925 sterling silver finished in rhodium for a crisp, white-gold look; his is tungsten carbide, one of the hardest, most scratch-resistant metals in fine jewelry, with a comfort-fit interior. Both are hypoallergenic and nickel-free, and her ring can be upgraded to solid gold on request.
Specifications
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Set Three-piece his & hers couples ring set (her ring + her band + his ring)
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Her metal Solid 925 sterling silver, rhodium finish, Celtic knotwork
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Center stone Natural black onyx, pear cut, 6 x 8 mm (approx. 1.5 ct)
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Accents Cubic zirconia
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His metal Tungsten carbide, comfort fit
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His inlay Crushed natural black onyx
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Band widths 8 mm (his) · 1.5–1.6 mm (hers)
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Finish High polish / rhodium plated
Sizing & care
Each ring is made to order in your exact sizes and is hypoallergenic and nickel-free. Wipe clean with a soft cloth and store dry to keep the onyx lustrous. Every order arrives in a free luxury velvet ring box with free U.S. shipping, conflict-free stones, and a lifetime warranty — so it is ready to gift or propose with the moment it lands.
Further reading from our journal
Curious about the gemstones in this set? Read more on the guide to black gemstones, black rings for women, and gothic wedding ring styles.
Frequently asked questions
Is this sold as a matching set?
Yes — it is a three-piece his & hers couples set, and each ring can also be purchased separately.
Is the black onyx natural?
Yes, the pear-cut center and his inlay are natural black onyx, chosen for its deep, glassy luster. The sparkling accents around it are cubic zirconia.
What does the Celtic knotwork mean?
Celtic knots have no beginning and no end, symbolizing eternal love and unity — a fitting motif for a couples ring set.
What does black onyx symbolize?
Black onyx is associated with strength, protection, and resilience, making it a meaningful choice for a lasting partnership.
What is on the men's band?
His 8 mm tungsten band is inlaid with crushed natural black onyx for a deep, matte, powerful look.
What metals are used?
Her ring is solid 925 sterling silver with a rhodium finish; his is tungsten carbide. Both are hypoallergenic and nickel-free, and her ring can be made in solid gold on request.
Is this good for a gothic or Celtic wedding?
Yes — the Celtic knotwork and deep black onyx make it a favorite for gothic and Celtic-inspired weddings, alternative engagements, and promise rings.
What are the band widths?
His band is 8 mm and her rings are 1.5–1.6 mm each.
What comes with my order?
A free luxury velvet ring box, free U.S. shipping, conflict-free stones, and a lifetime warranty.
