Geometry with a hidden talent. The Sonnet Hexagon Alexandrite Engagement Ring frames a color-shifting hexagon-cut gem that reads teal to blue-green in daylight and warms to deep purple and violet under lamplight and candle glow. The six-sided cut is crisp and architectural, the setting vintage-inspired, and the whole ring is cast in solid 925 sterling silver with a bright rhodium finish — a modern heirloom for anyone drawn to color that moves.
Color-shift alexandrite
Hexagon cut
Vintage-inspired
Solid 925 sterling silver
Rhodium finish
Free ring box
A hexagon cut with color that shifts
The story starts with the color change. In cool daylight the hexagon alexandrite glows teal to green; move indoors under warm incandescent light or candlelight and it deepens to purple and violet. That transformation is the rarest quality a gemstone can offer, and the hexagon’s clean, faceted geometry gives it a sharp, contemporary stage to perform on. It is a distinctive silhouette that sits beautifully among vintage-inspired and geometric alexandrite engagement rings.
The hexagon color-shift alexandrite
The center is a lab-grown alexandrite, precision-cut as a 5 x 9 mm hexagon of roughly 1.3 carats. Lab-grown alexandrite is optically identical to the natural stone, delivering the same daylight-to-lamplight shift that makes mined alexandrite one of the rarest gems on earth — at a price that makes it wearable every day. If you have ever wondered how a single stone can hold two colors, our guide on whether synthetic alexandrite changes colors explains the science, and our overview of lab-grown versus natural alexandrite covers what matters when you buy.
A brilliant simulated diamond accent
Sparkling simulated diamonds edge the setting, adding a crisp flash of white brilliance that outlines the hexagon and makes each color read cleaner and brighter. It is a smart, budget-friendly way to bring classic engagement-ring shimmer to the design while keeping the color-shift center firmly in the spotlight. Prefer a lab-grown diamond or moissanite accent? Message us and we can tailor it.
Solid sterling silver with a rhodium finish
The ring is crafted in solid 925 sterling silver and finished with rhodium, the same precious metal used on fine white gold. That rhodium layer gives the band a bright, mirror-white luster and a protective shield that helps resist tarnish and everyday scratches, keeping the silver looking freshly polished. It is 100% nickel-free and hypoallergenic, with a lightweight, comfortable fit.
What alexandrite symbolizes
A gem that transforms with the light has long stood for adaptability, balance and good fortune — a quietly meaningful emblem for a love that keeps evolving. As June’s birthstone, alexandrite also makes a heartfelt birthday or engagement gift. Explore coordinating pieces across our alexandrite jewelry and alexandrite couples rings, and if you are choosing between gemstones, our comparison of alexandrite versus sapphire is a useful read.
Specifications
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Metal Solid 925 sterling silver with rhodium finish
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Center stone Lab-grown color-shift alexandrite (teal to purple)
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Cut Hexagon, 5.0 x 9.0 mm, approx. 1.3 ct
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Accent Simulated diamond (cubic zirconia)
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Hardness 8.5 on the Mohs scale
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Style Vintage-inspired, geometric
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Finish Polished, rhodium-plated, nickel-free
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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 ring box & lifetime warranty
Sizing & care
Choose your size at checkout. If you are between sizes or unsure, we are happy to help — and if the fit is not quite right, resizing is available and starts from a modest fee. To keep the color shift vivid and the rhodium finish bright, remove the ring before showering, swimming or applying lotions, and store it in its box when not worn. A soft, dry cloth restores the shine in moments, so the ring is easy to wear every day.
Frequently asked questions
Does the alexandrite change color?
Yes, and the shift is visible in real life. The hexagon center reads teal to green in cool daylight and turns purple to violet under warm incandescent light or candlelight. Changing rooms is like watching the stone change its mind.
Is the alexandrite natural or lab-grown?
It is a genuine lab-grown alexandrite, optically identical to the natural stone. That is how it delivers the same rare daylight-to-lamplight color change at a fraction of the cost of a mined gem.
Why choose a hexagon cut?
The hexagon is a crisp, architectural shape that feels both vintage and modern. Its clean facets frame the color-shift stone beautifully and give the ring a distinctive, non-traditional profile.
How large is the stone?
The hexagon measures roughly 5 x 9 mm and weighs about 1.3 carats, an elegant, wearable size that still makes a clear statement on the hand.
What are the accent stones?
Simulated diamonds that add a crisp white sparkle and outline the hexagon center. If you would prefer a lab-grown diamond or moissanite accent, reach out and we can tailor the design.
What metal is it made from?
Solid 925 sterling silver, finished with rhodium for a bright white luster and extra protection against tarnish and scratches. It is 100% 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 shine and adds a protective layer that helps the ring stay looking freshly polished.
Is it durable enough for daily wear?
Yes. Alexandrite is very hard at around 8.5 on the Mohs scale, making it well suited to everyday wear. Avoid hard knocks and remove the ring for rough activities to keep it pristine.
Is it a good June birthstone gift?
Yes. Alexandrite is a birthstone for June, so this ring is a thoughtful choice for a June birthday, an engagement or an anniversary.
Will sterling silver turn my finger green?
No. Genuine 925 sterling silver with a rhodium finish will not turn your skin green. Green marks come from low-quality or fake metals, never from real sterling silver.
Can it be engraved?
Yes. You can add a personal engraving of up to 16 characters at checkout, such as a date or initials. Engraved pieces are final sale, so please double-check spelling.
How does it arrive and is it guaranteed?
It ships in a free ring box, backed by our lifetime warranty, with free USA shipping. All stones are ethically sourced and conflict-free.
