A dark fairytale told in deep green. The Lilith Coffin Cut Emerald & Green Fire Opal Couples Ring Set pairs her blackened-silver emerald stack—crowned by a dramatic coffin-cut center—with his black tungsten band glowing with crushed green fire opal. For the couple whose romance runs a little gothic, a little otherworldly, and entirely their own.
Three-piece set
Coffin-cut emerald
Green fire opal band
Blackened silver + tungsten
May birthstone color
His & hers
Two hands, one dark romance
Some couples want candlelight and shadow rather than sunshine and sparkle. This three-piece his-and-hers set was made for them: her coffin-cut emerald engagement ring and matching band stack into a single striking silhouette, while his domed black band carries a river of green fire opal that seems to glow from within. Coordinated in deep green and darkened metal, it's a favorite among our dark-romance couple rings and gothic sets—an alternative to the traditional. New to shopping for a pair? Our guide to the best matching rings for couples in 2026 is a beautiful starting point.
Her Rings
A two-piece stack in solid 925 sterling silver with a blackened black-ruthenium finish, centered on a coffin-cut simulated emerald (approx. 2 ct) framed by simulated diamond (CZ) accents, with a matching shadow band.
His Ring
A comfort-fit, domed black tungsten carbide band inlaid with crushed green fire opal—rugged, scratch-resistant, and quietly luminous.
Coffin-cut emerald & green fire opal
Her center is a coffin-cut simulated emerald—an elongated casket silhouette hand-set for a rich, saturated green, the storied color of the May birthstone. Emerald has symbolized love and rebirth for millennia; our emerald and May birthstone guide traces the lore. His band answers it with crushed green fire opal, so the pair reads as one deep-green story across two hands.
Metals & everyday wear
Her rings are solid 925 sterling silver finished in black ruthenium—a rare platinum-family metal—for a deep gunmetal, blackened-silver glow; his is black 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 rings can be upgraded to solid gold on request. You'll find more pairings in our gemstone couples rings.
Specifications
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Set Three-piece his & hers set (his band + her ring + her band)
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Her metal Solid 925 sterling silver, black ruthenium finish
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His metal Black tungsten carbide, comfort fit
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His inlay Crushed green fire opal
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Center stone Coffin-cut simulated emerald, approx. 2 ct
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Accents Simulated diamonds (CZ)
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Birthstone May (emerald)
Sizing & care
Each ring is made to order in your sizes, hypoallergenic and nickel-free; a soft cloth keeps everything looking its best. Every order arrives in a free luxury velvet ring box with free U.S. shipping, conflict-free stones, and a lifetime warranty—ready to gift or propose with the moment it lands.
Further reading from our journal
If you love the story behind the stones, our journal goes deeper: read the complete opal engagement ring guide, opal as the October birthstone, and the history of gemstones.
Frequently asked questions
Is this sold as a matching set?
Yes—it's a three-piece his & hers set, and the rings are also available separately if you'd prefer.
What's the center stone?
Her center is a coffin-cut simulated emerald, hand-set for a vivid, saturated green, framed by simulated diamond (CZ) accents.
What is a coffin cut?
A coffin (or casket) cut is an elongated hexagonal shape with a gothic edge—a dramatic alternative to classic emerald or oval cuts.
Is emerald a birthstone?
Yes—emerald is the May birthstone, which makes this set a meaningful May birthday, engagement, or anniversary gift.
What is on the men's band?
His domed black tungsten band carries a crushed green fire opal inlay, for a luminous, coordinated glow alongside her emerald.
What metals are used?
Her rings are solid 925 sterling silver with a black ruthenium finish; his is black tungsten carbide. Both are hypoallergenic and nickel-free, and her rings can be made in solid gold on request.
What does the blackened finish look like?
It reads as a rich, deep gunmetal—a blackened-silver glow from black ruthenium over sterling silver.
Is this good for a gothic wedding?
Absolutely—the coffin cut, deep green emerald, and dark metal make it a favorite for gothic and fantasy-inspired weddings.
What comes with my order?
A free luxury velvet ring box, free U.S. shipping, conflict-free stones, and a lifetime warranty.
