A kite-cut galaxy sandstone bridal ring set with a starry-night, deep-cosmos aesthetic — a glittering midnight-blue kite stone at the center, surrounded by a kite-shaped black onyx pavé halo, paired with a matching chevron contour band accented with black onyx and a marquise black onyx at the V-apex. Set in solid 925 sterling silver with rhodium finish. The galaxy sandstone's deep blue body scattered with tiny sparkling flecks reads like a field of stars on a dark night — the celestial centerpiece of our Starry Night collection, inspired by the Great Rift of the night sky. A bold cosmic alternative to a traditional bridal set.
Kite-Cut Galaxy Sandstone 5×8mm Center Black Onyx Halo + Accents Chevron Contour Band Solid 925 Sterling Silver Two-Piece Set
The Engagement Ring
Kite-cut galaxy sandstone center (5×8mm) surrounded by a kite-shaped pavé halo of black onyx that traces the center stone's geometric outline, on a thin sterling silver band.
The Chevron Contour Band
V-shape chevron silhouette with round black onyx accents fanning up each side and a marquise-cut black onyx at the apex point (pointing down). Designed to nest below the engagement ring.
About the galaxy sandstone (blue goldstone)
Galaxy sandstone — known in the gemstone trade as blue goldstone — is a man-made art glass with a deep midnight-blue body color, embedded with countless tiny copper-based crystals that sparkle as the light moves across the stone. The effect is unmistakably cosmic: a deep dark-blue field scattered with glittering points of light, exactly like a clear night sky full of stars or a distant nebula. The kite cut (an elongated geometric shape with a pointed bottom and angled top) emphasizes the starfield effect across a large visible surface.
Blue goldstone art glass has been made for centuries — the technique of suspending copper crystals in glass to create the sparkle effect is a historical glassmaking craft. It's prized specifically for the cosmic sparkle that natural stones can't replicate in the same way. For a celestial, starry-night, galaxy-themed engagement ring, galaxy sandstone is the material that delivers the effect most dramatically.
Because it's a glass material, galaxy sandstone requires gentle care — more like fine glass than a hard gemstone. It can scratch or chip if knocked against hard surfaces, so this set is best suited as a statement or occasion piece, or a daily-wear ring worn with awareness of its glass character. (More in the care section below.)
About the black onyx accents
The accent stones — the kite-shaped pavé halo around the center, the round accents on the chevron band, and the marquise accent at the V-apex — are natural black onyx, a variety of chalcedony quartz with a deep opaque black body. Most commercial black onyx, including the stones in this set, is heat-treated and dyed to achieve uniform black saturation from the natural grey/banded chalcedony rough. The treatment is permanent, stable, and industry-standard. The underlying material is real natural chalcedony quartz.
Important honesty: the black accents are not black diamonds — they're real natural black onyx, a different material from diamond. The deep opaque black of the onyx is the perfect frame for the galaxy sandstone: it deepens the "dark night sky" effect, making the sandstone's sparkle read even more like stars against a black cosmos. The black-on-midnight-blue palette is the heart of the starry-night aesthetic.
About the starry-night celestial design
This set is built around the cosmic aesthetic — the Great Rift of the Milky Way, the deep dark sky scattered with stars, the sense of boundless wonder in the night sky. The deep blue glittering sandstone is the "galaxy," the black onyx halo and accents are the surrounding "dark cosmos," and the kite geometry gives the design a modern, celestial, almost crystalline structure. Worn together, the engagement ring and chevron band frame the galaxy stone in a complete cosmic composition.
The set fits celestial, galaxy, cosmic, starry-night, and astronomy-lover aesthetics — for buyers who want an engagement ring that captures the night sky rather than a traditional white-stone solitaire. It's equally at home as an alternative bridal set, a statement piece, or a meaningful gift for someone who loves the stars.
About the 925 sterling silver and rhodium finish
Both rings are solid 925 sterling silver — 92.5% pure silver throughout, not plated base metal — with a rhodium finish for bright white-metal luster and added scratch and tarnish resistance. The cool, bright silver is the right backdrop for the deep cosmic blue and black palette, keeping the focus on the galaxy sandstone's sparkle. Genuine 925 sterling silver does not turn skin green; that reaction is associated with low-quality base metals, not real 925. The rings are nickel-free and hypoallergenic.
How to wear the set
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Complete bridal set — both rings stacked together as the proposal + wedding set, framing the galaxy stone in a full cosmic composition
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Engagement ring solo — proposal piece, with the contour band added at the wedding
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Chevron band solo — worn alone or stacked with other bands
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Promise ring or anniversary gift — the cosmic symbolism (boundless wonder, the vastness of the night sky) suits milestone and romantic occasions
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Celestial / galaxy lover's piece — for buyers drawn to astronomy, the cosmos, starry-night aesthetics, or anyone who wants a genuinely unusual, conversation-starting ring
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Alternative bridal — a bold cosmic statement that stands apart from standard white-stone bridal sets
Specifications
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Set type: Two-ring bridal set (engagement ring + chevron contour band)
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Center stone: Galaxy sandstone / blue goldstone (man-made art glass with copper crystal inclusions)
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Center stone cut: Kite (elongated geometric)
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Center stone size: 5.0 × 8.0 mm
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Center stone color: Deep midnight blue with glittering starfield sparkle
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Halo + accents: Natural black onyx — kite-shaped pavé halo + round accents on the chevron band + marquise accent at the V-apex
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Black onyx hardness: 6.5–7 (Mohs scale)
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Metal: Solid 925 sterling silver with rhodium finish
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Band width: Approximately 1.7 mm (each ring)
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Band profile: Comfort fit (both rings)
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Properties: Hypoallergenic · Nickel-free
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Audience: Women's bridal set
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Aesthetic: Celestial · Galaxy · Cosmic · Starry night · Nebula · Alternative bridal
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Origin: Galaxy sandstone is man-made art glass; black onyx ethically sourced natural chalcedony
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Packaging: Free luxury velvet jewelry box with every order
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Shipping: Free USA shipping
Sizing & care
True to size and comfort-fit. If you don't know your size, message us before ordering — we can send a complimentary ring sizer.
Because the galaxy sandstone center is a glass material, this set needs gentle care — treat it more like fine glass than a hard gemstone. Avoid impact on hard surfaces (glass can scratch or chip), avoid harsh chemicals, ultrasonic and steam cleaners, and extreme temperature changes. Remove the ring before cleaning, gardening, swimming, exercising, or any activity where it might be knocked. The black onyx accents are also sensitive to impact and harsh chemicals. Clean gently with a soft, dry or barely-damp cloth only — avoid soaking. A soft jewelry cloth keeps the rhodium finish bright. Store the rings separately from other jewelry so the galaxy stone and accents don't get scratched.
Frequently asked questions
Is the galaxy sandstone a natural gemstone?
No — and we're upfront about this. Galaxy sandstone (also called blue goldstone) is a man-made art glass, not a natural mined gemstone. It's a manufactured glass embedded with tiny copper-based crystals that create the glittering "starfield" sparkle. The cosmic effect is the entire appeal of the material, and it's achieved through the manufactured glass with its suspended copper crystals. It is not a natural stone, not a sapphire, and not lab-grown corundum — it's blue goldstone art glass.
What is blue goldstone?
Blue goldstone is the gemstone-trade name for the man-made art glass used in this ring (also marketed as "galaxy sandstone"). It's a glass with a deep midnight-blue body color and suspended copper crystals that sparkle like stars. The glassmaking technique has been used for centuries. It's prized specifically for its cosmic, starry-night sparkle that natural stones don't replicate in the same way.
Why use art glass instead of a natural gemstone?
Because the starry-night, galaxy sparkle effect is unique to blue goldstone art glass — no natural stone delivers that dense field of glittering points across a deep midnight-blue body in the same way. For a celestial, cosmic, starry-night design, galaxy sandstone is the material that achieves the effect most dramatically. If you'd prefer a natural or lab-grown stone center (blue sapphire, for example) in a similar celestial design, message us before ordering for a custom quote.
Are the black accents real black diamonds?
No — the black accents are natural black onyx, a variety of chalcedony quartz. Most commercial black onyx is heat-treated and dyed for uniform black saturation, which is industry standard. The underlying material is real natural chalcedony quartz. Black diamonds at this size and quantity would multiply the price; the black onyx gives the deep opaque black that frames the galaxy stone perfectly.
How durable is the ring for daily wear?
The galaxy sandstone center is a glass material, so it needs more careful handling than a hard gemstone — glass can scratch or chip if knocked against hard surfaces. This set is best suited as a statement or occasion piece, or a daily-wear ring worn with awareness of its glass character (removed before activities where it might be knocked). The black onyx accents are also sensitive to impact and chemicals. With gentle care, the set holds up well; it just requires more attentive treatment than a sapphire or diamond ring.
How big is the center stone?
5.0 × 8.0 mm kite cut. The elongated kite shape (pointed at the bottom, angled at the top) gives the galaxy sandstone a large visible surface to show off the starfield sparkle, and the geometric shape adds to the celestial, crystalline aesthetic. With the black onyx halo framing it, the overall ring face reads larger than the center stone alone.
What does the design symbolize?
The set is built around the cosmic, starry-night aesthetic — the deep blue glittering sandstone as the "galaxy" or night sky, the black onyx as the surrounding dark cosmos. It's inspired by the Great Rift of the Milky Way. For buyers who love astronomy, the cosmos, or the boundless wonder of the night sky, the design carries that celestial symbolism. The kite geometry adds a modern, crystalline structure to the cosmic theme.
Will sterling silver turn my finger green?
No. Genuine 925 sterling silver does not turn skin green. Both rings are solid sterling silver throughout, finished with rhodium for added brightness and tarnish resistance. Nickel-free and hypoallergenic.
What's included in the set?
Two rings: the kite galaxy sandstone engagement ring with black onyx halo, and the matching chevron contour band with black onyx accents. Both are solid 925 sterling silver with rhodium finish, and they ship together in a free luxury velvet jewelry box.
Can I buy each ring separately?
This listing is the complete two-ring set. If you'd like just the engagement ring or just the chevron band, message us before ordering and we'll see if individual listings can be arranged.
Do you offer this design with a natural stone center?
Yes — message us before ordering. We can quote a version with a lab-grown blue sapphire or other natural/lab-grown stone center in a similar celestial design, or a solid 14K gold version. The galaxy sandstone is the signature material for the starry-night effect, but alternatives are available for buyers who prefer a natural or lab-grown gemstone center.
What's included in the box?
Both rings, a free luxury velvet jewelry box, and a care card. Free USA shipping.
