The magic reveals itself twice over. From above, a color-change alexandrite that reads cool teal blue-green by day and warm purple-violet by candlelight; from the side, a hidden halo of simulated diamonds that sparkles in secret just beneath the crown. This cushion cut alexandrite ring centers a 7 × 7 mm lab-grown alexandrite of roughly 1.9 carats in solid 925 sterling silver with a rhodium finish — an engagement ring engineered so the surprise is built into the setting itself.
Color-shift alexandrite
Cushion cut, 7 × 7 mm, approx. 1.9 ct
Hidden halo
Lab-grown center
Solid 925 sterling silver
Rhodium finish
Color that answers the light
Alexandrite is the gem that changes with its surroundings, and here the shift leads the whole design. In daylight or cool light the cushion center reads teal, blue-green and cool blue; step under incandescent bulbs, candlelight or a warm evening lamp and it turns toward purple and violet. Because the stone sits high and open above the hidden halo, the transformation is easy to catch as you move through the day. To understand the science behind the effect, our explainer on whether synthetic alexandrite changes color is a great starting point, and the wider collection of alexandrite engagement rings shows the phenomenon across cuts.
The hidden halo
Look at this ring from above and you see a clean, modern cushion solitaire. Tilt it and a secret appears: a concealed halo of simulated diamonds set around the base of the center stone, throwing extra brilliance up through the crown and adding a whisper of sparkle visible only from the side. It is an architectural detail borrowed from fine bridal design — understated on top, luminous in profile — and it lets the color-change alexandrite stay the clear focal point while the hidden halo works quietly beneath it.
The lab-grown alexandrite center
The cushion is lab-grown alexandrite — genuine color-change chrysoberyl grown under controlled conditions, offering the same beauty, chemistry and Mohs 8.5 durability as natural alexandrite. That origin is what makes a stone this size and this vivid attainable: fine natural alexandrite is one of the costliest gems in the world at comparable carat weights. If you want to weigh the choice properly, our guide to lab-grown versus natural alexandrite is written for exactly that.
Solid sterling silver with a rhodium finish
The 2.1 mm comfort-fit band is solid 925 sterling silver, finished with rhodium — the same precious metal used on fine white gold — for a bright, mirror-white luster and a protective layer that helps resist tarnish and everyday scratches. It is nickel-free and hypoallergenic, safe for sensitive skin, and genuine sterling silver will not turn your finger green. Pair it with a plain or accented band from our alexandrite wedding bands for a complete stack.
What alexandrite symbolizes
The modern June birthstone, alexandrite is read as a stone of transformation, balance and good fortune — its two faces a fitting emblem for a love that shows a different side in every light. That symbolism, plus the hidden-halo surprise, makes it a memorable engagement ring, anniversary gift or promise ring. Couples who love the idea of matching pieces often look to our alexandrite couples rings, and if you are torn between color-change and a classic blue gem, our comparison of alexandrite versus sapphire will help you decide.
Specifications
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Metal Solid 925 sterling silver with rhodium finish
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Center stone Lab-grown alexandrite (cushion cut)
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Stone size 7 × 7 mm, approximately 1.9 ct
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Color shift Teal blue-green in daylight to purple violet in warm light
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Hardness 8.5 on the Mohs scale
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Accents Simulated diamonds in a hidden halo
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Band width Approximately 2.1 mm, comfort fit
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Properties Nickel-free, hypoallergenic
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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
Sizing & care
Choose your size at checkout. If you are between sizes or unsure, contact us for guidance — and if the fit needs adjusting, resizing is available and starts from a modest fee. To keep the alexandrite, the hidden halo and the rhodium finish at their brightest, remove the ring before showering, swimming or applying lotions, and store it in the velvet box when not worn. A soft, dry cloth restores the shine, and an occasional gentle clean reaches the concealed halo beneath the crown.
Frequently asked questions
Does the alexandrite really change color?
Yes, and the open cushion setting makes it easy to see. In daylight or cool light the stone reads teal and blue-green; under warm incandescent light or candlelight it shifts toward purple and violet. The same ring can look like two different gems within a single day.
What is a hidden halo?
A hidden halo is a ring of small accent stones set around the base of the center stone, just below the crown, so it is invisible from directly above but sparkles when the ring is viewed from the side. It adds extra brilliance and a secret detail while keeping the top view clean and modern.
Is the alexandrite natural or lab-grown?
Lab-grown. It is genuine color-change chrysoberyl grown in controlled conditions, with the same chemistry, Mohs 8.5 hardness and color-shift behavior as natural alexandrite. Because natural alexandrite is exceptionally rare and costly, lab growth is what makes a vivid, full-size stone accessible.
What are the accent stones?
They are simulated diamonds, set in the hidden halo for a crisp, bright sparkle that lifts the alexandrite without competing with it. If you would prefer moissanite or lab-grown diamond accents, message us and we can tailor it.
What metal is the ring made from?
Solid 925 sterling silver, finished with rhodium for a bright white luster and extra protection against tarnish and scratches. It is nickel-free and hypoallergenic.
What does the rhodium finish do?
Rhodium is the same precious metal used to finish fine white gold. It gives the silver a mirror-bright, white-gold-like shine and adds a protective layer that keeps the ring looking freshly polished.
Is alexandrite durable enough for daily wear?
Yes. Alexandrite is Mohs 8.5, close to sapphire, making it one of the most durable colored center stones you can choose for an everyday engagement or promise ring.
Is alexandrite a June birthstone?
Yes. Alexandrite is the modern June birthstone, which makes this ring a meaningful choice for a June birthday, a June anniversary or a June-born partner.
Will sterling silver turn my finger green?
No. Genuine 925 sterling silver does not turn skin green; that reaction comes from low-quality base metals. This ring is solid sterling silver finished with rhodium, and it is nickel-free and hypoallergenic.
Can the ring be engraved?
Yes. You can add a personal engraving of up to 16 characters — a date, initials or a short message. Engraved pieces are final sale, so please double-check the spelling before ordering.
How do I care for it?
Remove it before showering, swimming or applying lotions, store it in the velvet box, and buff it with a soft dry cloth. An occasional gentle clean reaches the hidden halo beneath the crown and keeps the color-shift stone luminous.
Are the stones ethically sourced?
Yes. The lab-grown alexandrite has no mining footprint, and all accents are ethically produced, so you can wear the ring with complete peace of mind.
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.
