A coffin-cut alexandrite engagement ring with rainbow moonstone accents — a substantial 7×10mm color-change alexandrite at the center, cut in the elongated coffin silhouette that's become the signature shape of gothic and dark-romance bridal, flanked by paired CZ clusters and a glowing marquise rainbow moonstone at each shoulder. Set in solid 925 sterling silver with rhodium finish. The alexandrite shifts color with the light — teal-blue in daylight, violet-purple under warm evening light — while the moonstones flash their blue adularescent glow at the edges. Gothic structure, celestial shimmer, and a stone that never looks the same twice: this is one of the most distinctive rings in the collection.
Coffin-Cut Alexandrite
Color-Change · 7×10mm · ~2.1ct
Natural Rainbow Moonstone Accents
CZ Cluster Accents
Solid 925 Sterling Silver
Both June Birthstones
The Color-Change Effect
Alexandrite is famous for one thing above all: it changes color with the light. In daylight or cool fluorescent light, the stone reads teal to blue-green; under incandescent bulbs, candlelight, or warm evening light, it shifts toward violet, purple, and reddish-plum. The shift is real and dramatic — the same ring reads as two different stones depending on where you are. This is lab-created alexandrite: real color-change alexandrite material (chrysoberyl with the same chromium-driven color shift as natural alexandrite, Mohs 8.5) grown in controlled lab conditions, which is what makes a stone of this size and shift quality accessible — natural alexandrite at 2+ carats is one of the rarest and most expensive gems on earth.
About the coffin cut
The center stone is cut in a coffin shape — an elongated hexagonal silhouette with angled shoulders tapering toward the base, echoing the outline of a classic casket. The coffin cut has become the signature shape of gothic, dark-romance, and alternative bridal jewelry: structured and geometric like a kite or hexagon cut, but with an unmistakable dark-symbolic identity that no other shape carries.
Beyond the symbolism, the coffin cut is a genuinely flattering shape — the elongated proportions (7×10mm here) stretch the stone vertically on the finger, the step-cut facets show off the alexandrite's color depth across long clean planes, and the angular geometry catches the color shift in distinct flashes as the hand moves. For the color-change alexandrite specifically, the coffin cut's broad open facets make the daylight-to-evening shift especially visible.
Symbolically, the coffin in gothic romance tradition reads as "'til death do us part" made literal — eternal commitment, love beyond death, and the beauty found in darkness. For gothic, alternative, Halloween-season, and dark-academia couples, the coffin cut says what a round brilliant never could.
About the lab-created alexandrite center
The center stone is lab-created alexandrite — real color-change alexandrite material (chrysoberyl), grown in controlled laboratory conditions, with the same chemistry, the same Mohs 8.5 hardness, and the same chromium-driven color-change behavior as natural mined alexandrite. The only difference is origin — and at this size, origin is everything: natural alexandrite above 1 carat is among the rarest gems in the world, with fine 2-carat natural stones commanding five-figure-plus prices. Lab creation makes the full-size, full-shift alexandrite experience accessible.
At Mohs 8.5, alexandrite is harder than sapphire-adjacent stones like aquamarine and far harder than moonstone or opal — one of the most durable colored center stones available, well suited to daily wear.
About the rainbow moonstone accents
The marquise accent stones at the outer shoulders are natural rainbow moonstone — real moonstone displaying adularescence, the floating blue-white glow that moves across the surface of the stone as it catches light. "Rainbow" moonstone is the trade name for the variety with strong blue-to-multicolor flash on a semi-translucent body. Each moonstone's glow pattern is natural and slightly unique.
The moonstones do real aesthetic work in this design: their soft lunar glow balances the sharp gothic geometry of the coffin cut, pulling the ring toward celestial and witchy territory. The result reads gothic and mystical at once — the coffin's dark structure framed by moonlight. Note that moonstone is softer than the alexandrite center (Mohs 6–6.5), so the accents appreciate gentle treatment.
The small paired round stones clustered beside the center are simulated diamond (cubic zirconia/CZ) — bright white sparkle bridging the alexandrite and the moonstones.
Both June birthstones in one ring
A detail that makes this ring uniquely meaningful as a gift: alexandrite and moonstone are both June birthstones (June is one of the few months with multiple birthstones — alexandrite, moonstone, and pearl). This ring carries two of the three June stones in a single design, making it arguably the definitive June birthstone ring — for June birthdays, June anniversaries, or June-born partners, the symbolism is doubled.
About the 925 sterling silver and rhodium finish
The band is 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 suits the ring's cool palette: teal-violet alexandrite, blue-flash moonstone, white CZ. Genuine 925 sterling silver does not turn skin green; that reaction is associated with low-quality base metals, not real 925. Nickel-free and hypoallergenic.
How to wear it
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Engagement ring — for gothic, alternative, witchy, dark-academia, or boho couples who want a ring with genuine symbolic identity instead of a standard solitaire
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Gothic / dark-romance statement — the coffin cut is the signature gothic bridal shape; "'til death do us part" rendered in stone
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June birthstone gift — both alexandrite and moonstone are June birthstones; two of June's three stones in one ring
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Promise ring — the substantial ~2.1ct center gives it real commitment-piece presence
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Halloween / autumn season piece — the coffin symbolism makes it the definitive October statement ring, and a popular Halloween-season proposal choice
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Color-change conversation piece — the daylight-to-evening shift makes this a ring people notice twice
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Right-hand boho statement — the eclectic stone mix (color-change center + lunar accents) suits the bohemian, artistic register the design was born from
For an engagement pairing, the elongated coffin center suits a chevron or V-contour wedding band that follows the tapered base, or a plain band that lets the silhouette stand alone. Match in sterling silver for a unified cool-metal stack.
Specifications
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Ring type: Engagement ring / promise ring / statement ring
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Center stone: Lab-created alexandrite (real color-change chrysoberyl, lab-grown origin)
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Center stone cut: Coffin (elongated hexagonal casket silhouette)
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Center stone size: 7.0 × 10.0 mm
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Center stone weight: Approximately 2.1 ct
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Color change: Teal/blue-green in daylight → violet/purple under warm incandescent light
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Center stone hardness: 8.5 (Mohs scale)
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Side accents: Natural rainbow moonstone, marquise cut (one per shoulder) with blue adularescent flash
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Moonstone hardness: 6–6.5 (Mohs scale)
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Cluster accents: Simulated diamond (cubic zirconia/CZ), paired rounds flanking the center
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Metal: Solid 925 sterling silver with rhodium finish
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Band width: Approximately 1.9 mm
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Band profile: Comfort fit
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Properties: Hypoallergenic · Nickel-free
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Engraving: Personalized engraving available — initials, a name, or a special date; message us before ordering
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Audience: Women's engagement / statement ring
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Aesthetic: Gothic · Witchy · Dark romance · Boho · Celestial · Alternative bridal
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Birthstone: June — both alexandrite and moonstone
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Origin: Lab-created alexandrite has no mining footprint; natural moonstone ethically sourced
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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.
The alexandrite center is one of the more durable colored stones (Mohs 8.5) and handles daily wear well. The rainbow moonstone accents are softer (Mohs 6–6.5) and appreciate gentler treatment — avoid impact on hard surfaces, harsh chemicals, ultrasonic and steam cleaners, and sudden temperature changes across the whole ring. Clean with warm water and a soft cloth or soft brush. A soft jewelry cloth keeps the rhodium finish bright. Remove the ring before swimming, gardening, or heavy work, and store it separately so the prongs and moonstone accents don't catch on other pieces.
Frequently asked questions
Does the alexandrite really change color?
Yes — the color change is the stone's defining feature. In daylight or cool fluorescent light, the alexandrite reads teal to blue-green; under incandescent bulbs, candlelight, or warm evening light, it shifts toward violet, purple, and reddish-plum. The shift is caused by chromium in the crystal absorbing different wavelengths depending on the light source. The same ring genuinely reads as two different stones depending on the lighting.
Is the alexandrite natural or lab-created?
Lab-created — real color-change alexandrite material (chrysoberyl) with the same chemistry, the same Mohs 8.5 hardness, and the same chromium-driven color shift as natural mined alexandrite, grown in controlled lab conditions. We're upfront about this because at this size, origin matters enormously: natural alexandrite above 1 carat is among the rarest gems in the world, and a fine natural 2-carat stone would cost well into five figures. Lab creation is what makes the full-size, full-shift alexandrite experience accessible.
What is a coffin cut?
An elongated hexagonal cut with angled shoulders tapering toward the base, echoing the outline of a classic casket. It's become the signature shape of gothic, dark-romance, and alternative bridal jewelry — structured like a kite or hexagon cut, but with a dark-symbolic identity no other shape carries. The elongated proportions flatter the finger and the broad step facets show off the alexandrite's color shift especially well.
Are the moonstones real?
Yes — the marquise accents at the shoulders are natural rainbow moonstone, displaying genuine adularescence (the floating blue-white glow that moves across the stone as it catches light). Each moonstone's flash pattern is natural and slightly unique. The small paired round stones beside the center are simulated diamond (CZ).
Why is this called a June birthstone ring?
June is one of the few months with multiple birthstones — alexandrite, moonstone, and pearl. This ring carries two of the three: the alexandrite center and the rainbow moonstone accents. For June birthdays, June anniversaries, or June-born partners, the birthstone symbolism is doubled in a single ring.
Is this ring gothic or boho?
Honestly — both, and that's the point. The coffin cut gives it unmistakable gothic structure ("'til death do us part" in stone form), while the glowing moonstone accents pull it toward celestial, witchy, and bohemian territory. It suits gothic and alternative bridal, dark academia, witchy aesthetics, and eclectic boho styling equally well. It's a ring for someone whose style doesn't fit one box.
How big is the center stone?
7.0 × 10.0 mm coffin cut, approximately 2.1 carats. The elongated silhouette wears large on the finger — at over a centimeter long, this is a genuine statement-presence center stone.
How durable is the ring for daily wear?
The alexandrite center is one of the more durable colored stones available — Mohs 8.5, harder than aquamarine, morganite, or moonstone — and handles daily wear well. The rainbow moonstone accents are softer (Mohs 6–6.5) and appreciate gentler treatment: avoid hard knocks, harsh chemicals, and ultrasonic cleaners. With sensible care the ring wears well daily, but it needs slightly more attention than an all-hard-stone ring because of the moonstone accents.
Will sterling silver turn my finger green?
No. Genuine 925 sterling silver does not turn skin green. The ring is solid sterling silver throughout, finished with rhodium for added brightness and tarnish resistance. Nickel-free and hypoallergenic.
Can I get this engraved?
Yes — personalized engraving is available: initials, a name, or a special date, engraved inside the band. It's a meaningful touch for an engagement, promise, or birthstone gift. Message us with your engraving text before ordering.
Do you offer this design in solid 14K gold?
Yes — message us before ordering and we can quote a solid 14K white, yellow, or rose gold version of the same design. On the gold version, the CZ clusters can be upgraded to moissanite or lab-grown diamond. Message us for a custom quote.
Are the stones ethically sourced?
Yes. Lab-created alexandrite has no mining footprint and is fully traceable from controlled-lab origin. Natural rainbow moonstone is ethically sourced. CZ accents are ethically produced synthetic stones.
What's included in the box?
The ring, a free luxury velvet jewelry box, and a care card. Free USA shipping.
