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. 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; 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 limited lifetime warranty against manufacturing defects—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. 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 limited lifetime warranty against manufacturing defects.