A bloom of light with a color-change heart. The Aster alexandrite engagement ring centers a round lab-grown alexandrite — shifting through purple, pink and blue as the light changes — inside a radiating starburst "aster" halo of simulated diamond arranged like flower petals, with double-row pave shoulders running down each side. Set in warm 14K rose gold vermeil, it turns the stone's live color-shift into a theatrical bloom you wear on your hand.
Color-change alexandrite
Round · 7x7mm · 1.4 ct
Aster starburst halo
Double-row pave shoulders
14K rose gold vermeil
Free velvet gift box
The aster starburst halo
This is no ordinary smooth halo. Round accents radiate outward from the center stone in a flower-petal, sunburst pattern, so the alexandrite reads as the heart of a blooming aster with light bursting from every side. The construction does two clever things: it makes the center stone look larger than a plain halo of the same size, and it adds a sense of motion that suits a color-change stone perfectly — where a static halo would sit still, the aster feels alive. It is a distinctive silhouette within our alexandrite engagement rings and the wider alexandrite jewelry collection.
Purple, pink and blue — live color change
Alexandrite's signature is its color shift, and this round center delivers it beautifully. In daylight and fluorescent light it reads purple to blue-purple; under incandescent bulbs or candlelight it warms to pink; in direct sun it shows its most saturated cool blue-purple. It is a genuine optical effect, not a coating, so the stone changes in real time as you move from room to room or walk past a window. To understand exactly how it works, our guide on how synthetic alexandrite changes color is the clearest place to start.
The lab-grown alexandrite
The center is genuine lab-grown alexandrite — real chrysoberyl with the same color-change chromium chemistry and 8.5 Mohs hardness as mined alexandrite, grown in a controlled lab rather than the earth. Since natural alexandrite is one of the rarest gems in the world, lab-grown is what makes a vivid 1.4-carat stone wearable as an everyday engagement ring rather than a museum piece. For an honest comparison, read lab-grown vs natural alexandrite.
Pave shoulders & simulated diamond accents
Double-row pave simulated diamond (CZ) accents flow down each side of the band, so the whole upper face of the ring catches light and reads larger and more luxurious than the slim 1.9 mm band alone would suggest. Every accent — the aster halo and the shoulders — is simulated diamond, the bright, budget-friendly contrast that frames the color-change center. Rose gold is a deliberate choice here: the warm metal picks up the pink end of the alexandrite's shift and flatters the cool end too, supporting both sides of the color story in a way white or yellow metal cannot.
What alexandrite symbolizes
Discovered in Russia in 1830 and named for Tsar Alexander II, alexandrite has long symbolized transformation, balance and the ability to adapt — apt for the long arc of a partnership. It is the modern June birthstone (alongside pearl and moonstone) and the traditional 55th-anniversary stone. Deciding between colored gems? Our piece on alexandrite vs sapphire is a helpful read.
Specifications
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Metal 14K rose gold vermeil over sterling silver 925
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Center stone Lab-grown alexandrite (color-change)
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Center cut Round, 7.0 x 7.0 mm (approx. 1.4 ct)
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Color change Purple / pink / blue depending on light
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Hardness 8.5 on the Mohs scale
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Halo Aster starburst pave simulated diamond (CZ)
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Shoulders Double-row pave simulated diamond (CZ)
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Band width Approx. 1.9 mm, comfort fit
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Birthstone June (alexandrite) · 55th anniversary
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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
True to size and comfort fit — choose your size at checkout, and if you are unsure or between sizes, reach out and we can send a complimentary ring sizer. If the fit is not quite right, resizing is available and starts from a modest fee. To keep the color-change stone and rose gold bright, remove the ring before showering, swimming or exercise, keep it away from lotions and fragrance, and store it dry in its velvet box, ideally apart from other pieces so the pave does not catch. A soft, dry cloth restores the shine. It stacks beautifully with a band from our alexandrite wedding bands.
Frequently asked questions
Does the alexandrite change color?
Yes. In daylight and fluorescent light it reads purple to blue-purple; under incandescent bulbs or candlelight it warms to pink; in direct sun it shows its most saturated cool blue-purple. The change is a real optical effect, so the stone shifts in real time as your lighting changes.
Is the alexandrite real?
Yes — it is genuine lab-grown alexandrite, real chrysoberyl with the same color-change chemistry and hardness as mined alexandrite. It is grown in a controlled lab rather than mined, which is what makes a vivid 1.4-carat stone affordable. It is not a simulated stone.
What is rose gold vermeil?
Rose gold vermeil is real gold over sterling silver 925 — the warm, luminous look of rose gold at an easier price than a solid-gold piece. If you would like gold all the way through, the same design is also available in solid gold; just reach out.
What is an aster starburst halo?
Instead of a smooth circular halo, the accent stones radiate outward in a flower-petal, sunburst pattern around the center. It makes the alexandrite read larger and adds a sense of motion that suits the color-change stone beautifully.
Are the halo and shoulder accents real diamonds?
No — the aster halo and the double-row pave shoulders are all simulated diamond (cubic zirconia). They provide the bright, budget-friendly contrast that frames the real alexandrite center. A solid-gold custom version can be built with lab-grown or natural diamond accents on request.
How big is the center stone?
The round alexandrite is 7.0 x 7.0 mm, approximately 1.4 carats. With the radiating aster halo around it, the ring face reads noticeably larger than the center stone alone.
What colors will my stone show?
Expect purple to blue-purple in daylight, pink under warm indoor light, and the most saturated blue-purple in direct sun. The exact reading depends on your lighting, so the ring looks a little different everywhere you go — the point of alexandrite.
How durable is it for daily wear?
Very. Alexandrite sits at 8.5 on the Mohs scale, harder than aquamarine, morganite or quartz and just below sapphire and diamond, so it handles daily wear well. Avoid hard knocks and remove it for rough activities as general best practice.
Is it a good June birthstone gift?
Yes. Alexandrite is the modern June birthstone and the traditional 55th-anniversary stone, so this ring makes a meaningful June birthday, engagement or anniversary gift.
Will this ring stack with a wedding band?
Yes. The classical halo construction stacks cleanly with a wide range of bands — match in rose gold vermeil for a unified pink stack, or contrast with sterling silver or yellow gold contour bands for a two-tone bridal look.
How should I care for the ring?
Remove it before showering, swimming or exercise, keep it away from lotions and fragrance, and store it dry in its velvet box between wears, ideally apart from other jewelry so the pave does not catch. Clean gently with a soft, dry cloth.
Are the stones ethically sourced?
Yes. Lab-grown alexandrite has no mining footprint, and all of our stones are ethically sourced and conflict-free, 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.
