A ring straight out of a fairytale. The Esme Alexandrite & Black Onyx Engagement Ring pairs a color-changing alexandrite — a stone that quietly shifts hue as the light moves — with bold black onyx accents for a design that is equal parts whimsy and drama. Crafted in 14K rose gold vermeil, its soft blush warmth against jet-black stone makes it a vintage, fantasy-inspired keepsake for the dreamers and the romantics.
Color-shift alexandrite
Black onyx accents
14K rose gold vermeil
Vintage fairytale design
June birthstone
Free velvet gift box
A color-changing centerpiece
At the center sits a captivating alexandrite, the gem famous for changing color under different lighting, cool and violet in daylight, warmer and deeper under lamplight and candle glow. It is a rare and magical effect, and it gives the ring a sense of quiet enchantment that a single-color stone simply cannot match. If the phenomenon draws you in, our guide on how synthetic alexandrite changes color explains exactly what you are seeing, and you will find more of it across our alexandrite engagement rings.
Bold black onyx accents
Framing the color-changing center are accents of deep, glossy black onyx, a natural chalcedony whose jet-black polish gives the design its dramatic, storybook edge. The contrast between the dark onyx and the shifting alexandrite is what makes this ring feel vintage and otherworldly at once. It sits perfectly among our fantasy-inspired engagement rings, and for more on the mood, our feature on fantasy-inspired engagement rings is a lovely read.
Real, lab-grown alexandrite
The center is genuine lab-grown alexandrite, the same chrysoberyl as mined alexandrite but grown in a controlled setting for a vivid, dependable color-change, at a price the rare natural stone could never reach. At 8.5 on the Mohs scale it is well suited to everyday wear. If you would like to understand your options, our honest guide to lab-grown vs natural alexandrite is a clear place to start, and you can explore more color-rich pieces in our alexandrite jewelry range.
A meaningful June birthstone
As a June birthstone, alexandrite carries a lovely symbolism of luck, love and transformation, which makes the Esme a heartfelt choice for an engagement, a promise or a milestone gift. Set against dark onyx and warm rose gold vermeil, it becomes a fantasy-inspired heirloom with a story of its own. Torn between vivid gemstones? Our comparison of alexandrite vs sapphire lays out what makes each one special, and you will find kindred designs in our nature-inspired engagement rings.
Specifications
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Metal 14K rose gold vermeil (real gold over sterling silver 925)
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Center stone Lab-grown alexandrite, color-changing
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Accents Natural black onyx
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Hardness Alexandrite 8.5 on the Mohs scale
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Design Vintage, fantasy-inspired silhouette
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Significance Alexandrite is a June birthstone
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Personalization Optional engraving (up to 16 characters)
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Sourcing Ethically sourced, conflict-free stones
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Included Free luxury velvet gift box & lifetime warranty
Aquamarise vermeil is real gold over sterling silver 925 — the rich, golden look you love, at a price that makes it easy to say yes. Keep it luminous with a little care: remove before showering, swimming, or exercise, avoid contact with lotions and fragrance, and store dry between wears. Want gold all the way through? The same design is also available in solid gold.
Sizing & care
Choose your size at checkout. If you are between sizes or unsure, reach out and we will help, and if the fit needs adjusting, resizing is available and starts from a modest fee. To keep the vermeil warm and both stones bright, remove the ring before showering, swimming or exercise, keep it away from lotions and fragrance, and store it dry in its velvet box between wears. A soft, dry cloth restores the shine.
Frequently asked questions
Does the alexandrite really change color?
Yes. The center reads cool and violet in daylight and warms to deeper tones under incandescent light or candlelight. The color-change is a real, visible feature of the stone, with intensity varying by light source.
What are the black accents?
They are natural black onyx, a chalcedony prized for its deep, glossy jet-black polish. The dark stone frames the color-changing alexandrite and gives the ring its dramatic, vintage character.
Is the alexandrite real?
It is genuine lab-grown alexandrite, the same chrysoberyl as mined alexandrite, grown in a lab for a vivid, reliable color-change. Natural alexandrite is exceptionally rare, so lab-grown is how nearly every alexandrite ring is made.
What is rose gold vermeil?
Rose gold vermeil is real gold layered over sterling silver 925, so you get the warm, golden look of rose gold at a much easier price. If you would prefer gold all the way through, the same design is also available in solid gold.
What metal is the ring made from?
14K rose gold vermeil: a genuine layer of 14K rose gold over a solid sterling silver 925 base, giving the ring its warm blush tone against the dark onyx.
Is alexandrite durable enough for daily wear?
Yes. Alexandrite sits at 8.5 on the Mohs scale, making it one of the harder gemstones and well suited to everyday wear with normal care.
Is black onyx durable?
Yes. Black onyx sits around 6.5 to 7 on the Mohs scale, comfortably suited to everyday wear. Remove the ring for rough activities to keep both stones pristine.
Is it a good June birthstone gift?
Absolutely. Alexandrite is a June birthstone associated with luck, love and transformation, which makes the Esme a heartfelt gift for a June birthday, engagement or anniversary.
Can the ring be engraved?
Yes. You can add a personal engraving of up to 16 characters at checkout. Engraved pieces are final sale, so please double-check spelling.
How do I care for it?
Remove it before showering, swimming or exercise, avoid contact with lotions and fragrance, and store it dry in the velvet box between wears. A soft, dry cloth restores its shine.
What size should I order?
Select your ring size at checkout. If you are unsure or between sizes, contact us for guidance. Resizing is available and starts from a modest fee.
Are the stones ethically sourced?
Yes. Our stones are ethically sourced and conflict-free, and lab-grown alexandrite is an inherently responsible choice.
Does it arrive gift-ready?
Every order ships in a free luxury velvet gift box and is backed by our lifetime warranty, ready for a proposal or to give as a keepsake.
