One ring, two moods. This emerald-cut lab-grown alexandrite is a true color-change gem — shifting from cool teal-blue to soft violet-purple as the light around it changes — framed by a sparkling moissanite halo and accented shoulders, all in solid white gold, in your choice of 10K, 14K, or 18K, or platinum. A rare, magical stone made accessible, set in a vintage-inspired halo that catches the light from every angle.
Emerald Cut Alexandrite
Color-Change Stone
Moissanite Halo
~0.8–1 ct Center
Solid White Gold · 10K / 14K / 18K · Platinum
June Birthstone
The lab-grown alexandrite
The center is a genuine lab-grown alexandrite — real alexandrite (a color-change variety of chrysoberyl), created in a lab rather than mined. Natural alexandrite is one of the rarest and most expensive gems on earth, so lab-grown alexandrite is what makes this extraordinary stone wearable and accessible, with the same dramatic color change and the same 8.5 Mohs hardness for excellent everyday durability. If you're weighing your options, our guide to lab-grown vs natural alexandrite covers what actually matters. The emerald cut — a clean, rectangular step cut — gives the stone a sophisticated, vintage character and shows off its color beautifully, and it's one of the standout designs among our emerald-cut engagement rings. You'll find it alongside the rest of our alexandrite engagement rings.
The color change
Alexandrite is famous for its natural color shift. In cooler, daylight, or fluorescent light the stone reads teal-blue to blue-green; under warmer, incandescent, or candle light it turns purple to violet. It is a living, mood-ring quality that no photograph fully captures — the stone genuinely looks different depending on where you are and the light you are in.
The moissanite halo
Surrounding the alexandrite is a halo of brilliant moissanite, with more moissanite accents running down the shoulders of the band. Moissanite is a genuine lab-created gemstone known for exceptional fire and brilliance, harder than almost any gem at 9.25 Mohs. The bright white halo makes the center stone look larger and frames its color, while the accented band adds sparkle all the way around.
Choose your metal: 10K, 14K, 18K white gold, or platinum
The ring is crafted in solid white gold — genuine precious metal throughout, not plated or filled — and you choose your karat from the drop-down. 10K is the most durable and most affordable option; 14K is the classic balance of durability and gold content, and our default; 18K has the highest gold content for a richer, more luxurious feel. Prefer a naturally white, premium metal? Choose platinum — denser, hypoallergenic, and never in need of re-plating. Every option is solid precious metal that will not tarnish, fade, or turn your skin green, and the cool white color is permanent. Not sure which to pick? Our 10K vs 14K vs 18K gold karat comparison guide breaks down the differences, and other gold colors are available on request. Either way, solid white gold or platinum is the ideal neutral frame for a color-change stone.
The June birthstone
Alexandrite is one of the official birthstones for June, which makes this ring a deeply personal choice for a June birthday, an engagement, or an anniversary — a meaningful gift with a stone as unique as the person wearing it.
Ethically made
Both the lab-grown alexandrite and the lab-created moissanite are inherently ethical, conflict-free choices with a smaller footprint than mined stones — part of our commitment to a more transparent, sustainable jewelry industry.
Specifications
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Center stone: Lab-grown alexandrite (color-change)
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Center cut: Emerald cut
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Center size: Approx. 0.8–1 carat
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Color change: Teal-blue to violet-purple
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Center hardness: 8.5 Mohs
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Accent stones: Moissanite halo & shoulders (9.25 Mohs)
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Setting: Halo with accented band
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Metal: Solid white gold — 10K, 14K, or 18K, or platinum, selected from the drop-down
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Birthstone: June
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Packaging: Free luxury velvet ring box
Care
Alexandrite and moissanite are both durable, and solid gold is easy to keep bright. Clean with warm water, a drop of mild soap, and a soft brush, then dry with a lint-free cloth. Store it separately to avoid scratches, and remove it before harsh cleaning, swimming in chlorinated pools, or heavy manual work.
Alexandrite Halo Ring FAQs
Is the alexandrite real?
Yes — it is a genuine lab-grown alexandrite, which is real alexandrite (a color-change chrysoberyl) created in a lab rather than mined. It has the same color-change behavior and hardness as natural alexandrite.
Why lab-grown alexandrite instead of natural?
Natural alexandrite is one of the rarest, most expensive gems in the world. Lab-grown alexandrite is genuine alexandrite made accessible — the same magical color change, ethically created, at a fraction of the cost.
Does it really change color?
Yes. In cool daylight or fluorescent light it looks teal-blue to blue-green, and under warm incandescent or candlelight it shifts to purple-violet. The change is genuine and depends on the light around you.
Are the accent stones diamonds?
No — the halo and band accents are moissanite, a genuine lab-created gemstone prized for its brilliance and fire. At 9.25 Mohs it is extremely hard and durable for everyday wear.
What size is the center stone?
The emerald-cut alexandrite center is approximately 0.8 to 1 carat, giving it elegant presence framed by the moissanite halo.
What metal is it made from?
Solid white gold in your chosen karat — 10K, 14K, or 18K — or solid platinum, genuine precious metal throughout, not plated or filled, for a cool white, lifetime-quality setting that does not tarnish or fade.
Which metal should I choose?
10K is the most durable and most affordable; 14K is our default and the classic balance of durability and gold content; 18K has the highest gold content for a richer look; and platinum is a premium, naturally white, hypoallergenic metal that never needs re-plating. All are solid precious metal with a permanent white color, so it comes down to your budget and feel.
Will it tarnish or turn my finger green?
No. Solid white gold and platinum are non-reactive precious metals that do not tarnish or turn skin green, keeping their bright finish with normal care.
Can I wear it as an engagement ring?
Absolutely. With a durable color-change center, a brilliant moissanite halo, and a solid gold band, it makes a striking engagement ring, June birthstone ring, or anniversary ring.
How durable is it for everyday wear?
Very durable. The alexandrite is 8.5 on the Mohs scale and the moissanite accents are 9.25, both hard enough to stand up well to daily wear when given normal care.
Is alexandrite a birthstone?
Yes — alexandrite is one of the official birthstones for June, which makes this ring an especially meaningful gift for a June birthday.
How do I choose my ring size?
Select your size from the dropdown at checkout. We recommend confirming your size first — a local jeweler can measure your finger for the most accurate fit.
How should I care for it?
Clean with warm water, mild soap, and a soft brush, then dry with a lint-free cloth. Store it separately to avoid scratches, and remove it before harsh cleaning, swimming in chlorinated pools, or heavy manual work.
Is it ethically made, and does it arrive gift-ready?
Yes to both. The lab-grown alexandrite and lab-created moissanite are inherently ethical and conflict-free, and every ring ships in a free luxury velvet box.
