Two hands, one galaxy. This galaxy alexandrite and fire opal couples ring set pairs a bold 8 mm men's band with a slim 4 mm women's band, both carrying the same swirling deep-space inlay of alexandrite, galaxy sandstone, and fire opal beneath mirror-polished tungsten — a matched pair for couples whose love feels a little written in the stars.
Purple nebula inlay
Lab-created alexandrite
Fire opal & galaxy sandstone
Tungsten carbide
8 mm + 4 mm widths
His & hers
Two rings, one cosmic story
Some couples belong under an open night sky, tracing constellations together. This set was made for them: two tungsten bands that share a single deep-space color story, so the same nebula travels across both hands. It sits among the most romantic pairings in our collection of celestial couple rings, yet each band stands beautifully on its own. If you are still choosing, our guide to the best matching rings for couples in 2026 is a lovely place to begin.
His Band, 8 mm
A substantial dome-profile band in mirror-polished tungsten carbide, comfort-fit inside, carrying the full swirling purple nebula inlay.
Her Band, 4 mm
A slim, refined dome profile in the same mirror-polished tungsten with the identical cosmic inlay — elegant on its own or stacked.
The nebula inlay
Inspired by the Crab Nebula still glowing in violet and pink centuries after its supernova, the inlay layers crushed lab-created alexandrite with shimmering galaxy sandstone and glowing fire opal, so the surface reads like deep space caught in metal. Alexandrite is a June-born gemstone and fire opal an October birthstone, and opal lovers can discover more glowing designs in our fire opal ring guide or across our opal couples rings. Because crushed materials never settle twice the same way, each band is subtly one of a kind while the pair stays beautifully matched.
Metals & everyday wear
Both bands are tungsten carbide with a mirror-polish finish — one of the hardest metals in fine jewelry, prized for holding its shine through years of daily wear. Both are hypoallergenic and nickel-free, and a solid silver or solid gold upgrade is available on request.
Specifications
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Set Two-piece matched his & hers couples ring set
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Widths 8 mm (his) · 4 mm (hers)
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Base metal Tungsten carbide, mirror polish
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Profile Dome, comfort-fit interior
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Inlay Lab-created alexandrite, galaxy sandstone & fire opal
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Birthstones June (alexandrite) & October (opal)
Sizing & care
Each band is made to order in your sizes and is hypoallergenic and nickel-free. Wipe clean with a soft cloth to keep the inlay glowing. 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
Curious about the gemstones in this set? Read more on 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 is a two-piece his & hers couples set with an 8 mm men's band and a 4 mm women's band that share the same inlay, finish, and profile. Each ring is also available separately.
What is the inlay made of?
Crushed lab-created alexandrite, shimmering galaxy sandstone, and glowing fire opal, set beneath a protective clear channel for a deep-space nebula effect.
Is the alexandrite real?
Yes — it is lab-created alexandrite, a genuine chrysoberyl gemstone grown in a lab, used here in crushed form within the inlay.
Do the bands have a birthstone?
Yes — the inlay includes alexandrite (June) and fire opal (October), a lovely nod to June or October birthdays.
What are the band widths?
His band is 8 mm and her band is 4 mm.
Why tungsten carbide?
Tungsten carbide is one of the hardest metals in fine jewelry, holding its mirror polish through decades of everyday wear — a fitting symbol of a lasting partnership.
Are the bands hypoallergenic?
Yes. Both bands are nickel-free and gentle on sensitive skin.
Can we choose different widths?
The 8 mm and 4 mm pairing is standard; message us before ordering if you would like a custom width combination.
Can we buy just one band?
Yes. Each ring is also available separately if you only need the 8 mm or the 4 mm width.
What comes with my order?
A free luxury velvet ring box, free U.S. shipping, conflict-free stones, and a lifetime warranty.
