Order with confidence from Coral Strands, the established coastal design studio seen in Marie Claire, MSN, and StyleBlueprint.
Coral Strands
Large Oval Rainbow Moonstone Ring in Sterling Silver
Low stock: 1 left
- 🚚 Free Same-Day Shipping From Key West (Orders $150+) 🌴
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The Large Oval Rainbow Moonstone Ring in Sterling Silver is a statement ring that seems to glow from within. A bold 23 x 15.5 mm oval of rainbow moonstone, hand-selected for its flash, shimmers with blue and rainbow light every time your hand moves.
It's set in ethically sourced sterling silver, size 9, and one of a kind, so no one else will be wearing the same stone.
What Makes Rainbow Moonstone Glow
The shimmer in rainbow moonstone is called adularescence: light scatters through thin layers inside the stone, creating a soft glow that seems to float on the surface. In rainbow moonstone, that glow often flashes electric blue with hints of rainbow color. Because every stone forms differently, no two flash exactly alike.
Gemologically, rainbow moonstone is a white variety of labradorite, a close cousin of classic moonstone known for its colorful play of light.
Key Details
- Stone: Large oval rainbow moonstone, 23 x 15.5 mm
- Metal: Ethically sourced sterling silver
- Ring size: 9
- Look: Bold statement ring with blue and rainbow flash
- One of a kind: only one available
- Ships same day: for orders placed by 4PM ET, Monday through Friday
How to Style a Moonstone Statement Ring
On Its Own
At 23 mm long, the stone is the star. Wear it alone on your index or middle finger and let the flash do the talking.
With Other Silver
Pair it with slim silver bands or our Modern Geometric Offset Ring on the other hand for a collected look. Browse more rings to build your stack.
Day to Night
It looks just as good with a white tee and denim as it does with a black dress, where the blue flash really stands out.
A Meaningful Moonstone Gift
Moonstone is a June birthstone and has long been linked to intuition, new beginnings, and inner strength. This ring is a thoughtful gift for:
- June birthdays
- New beginnings, like graduations or a new job
- Anyone who loves bold, unusual jewelry
- Treating yourself
Why Shop Coral Strands
- Hand-selected stones: each moonstone is chosen for its flash and glow.
- Ethically sourced silver: made from responsibly sourced sterling silver.
- One of a kind: the ring pictured is the ring you'll receive.
- A real studio: we ship from our studio in Key West's historic Ferdinand Hirsch Cigar Factory.
- Real people: text us at (305) 767-3185 with any question and you'll reach a real person.
Before You Buy
What size is it? This ring is a size 9. Use our guide to measure your ring size at home before ordering.
How big is the stone? The oval moonstone measures 23 x 15.5 mm, nearly as long as a quarter is wide. It's a true statement ring.
Will mine flash like the photos? Yes. This is the exact ring pictured. The flash shows best in direct light and changes as you move your hand.
Frequently Asked Questions
What is rainbow moonstone?
Rainbow moonstone is a gemstone known for its blue and rainbow flash. Gemologically, it's a white variety of labradorite, closely related to classic moonstone.
Why does moonstone glow?
Moonstone glows because of adularescence. Light scatters between thin layers inside the stone, creating a soft shimmer that seems to float across the surface.
What size is this moonstone ring?
This moonstone ring is a size 9. It's one of a kind, so it's available in this size only.
Is moonstone a birthstone?
Yes. Moonstone is one of the birthstones for June, along with pearl and alexandrite.
Is this ring sterling silver?
Yes. The ring is ethically sourced sterling silver, which is 92.5% pure silver mixed with other metals for strength.
How do you care for a moonstone ring?
To care for a moonstone ring, take it off before working with your hands, since moonstone is softer than many gemstones and can chip if knocked. Clean it with warm, soapy water and a soft cloth, and avoid harsh chemicals.
One stone, one ring. Add the Large Oval Rainbow Moonstone Ring in Sterling Silver to your collection.
Orders placed by 4PM ET, M-F, ship same day from our studio in Key West's historic Ferdinand Hirsch Cigar Factory. Have a question? Easy text help is a few taps away at (305) 767-3185.
We seek out gems for their unique characteristics, natural beauty marks and all. Gemstone colors and shapes may vary slightly due to the nature of the natural precious and semi-precious gemstones.
- In stock. Ships today. Secure checkout.
- Store Owners: Order wholesale →
Meet the Maker
Meet the Maker
Coral Strands is a real, independent boutique in Key West, Florida. Karen spent three decades as an advertising executive — starting at Leo Burnett in Chicago — before building a second business from scratch as a caterer featured on Cooking Channel and in Martha Stewart. Every Boatkin is hand-packed in our Key West studio and ships within 24 business hours.
Have a question? Easy text help is a few taps away — reach our Key West team directly at (305) 767-3185.
Planning a group trip? Book a private Custom Tote Decorating Experience for 4 or more and design your own one-of-a-kind Boatkin together.
The Coral Strands Promise
The Coral Strands Promise
- Your Questions Answered: We are a real, independent boutique based in Key West, Florida. Easy text help available at 305-767-3185, or ask about our private Custom Tote Decorating Experience — details under the Classes tab.
- Gift Ready: Every single Boatkin is hand-curated and packed with premium tissue — ready to impress right out of the box.
What Verified Buyers Say
What Verified Buyers Say
⭐ 4.9 out of 5 Stars Based on Verified Customer Reviews. Looks great on screen. Looks even better on your shoulder. Coral Strands customers come back to tell us the same things: it arrived faster than expected — shipped within 24 hours directly from our Key West studio — the canvas is heavier and more structured than they imagined, and the complimentary 4-piece Coastal Styling Kit made it feel like a gift to themselves. One of our most photographed bags from Key West to the Caribbean — and the one strangers ask about first.
Ready to Ship
Ready to Ship
Free Shipping & Delivery
Our products are in stock and ready to ship within 1 business day from Key West, Florida. All orders $150 or more ship free.
Commitment to Sustainability & Ethical Sourcing
Commitment to Sustainability & Ethical Sourcing
We believe that beautiful jewelry should also be responsibly made. That’s why every piece we create is crafted with a deep commitment to sustainability and ethical sourcing.
Ethically Sourced Precious Metals
All of our 14k gold and sterling silver comes exclusively from refiners on the London Bullion Market Association (LBMA) list. This means our metals are sourced from refiners who are in good legal standing and who certify—as well as independently audit—that all supplies are fully traceable and conflict-free.
Mindfully Sourced Gemstones
We prioritize transparency and ethical practices in every gemstone we use. Whenever possible, we seek out mine-to-market stones or purchase directly from small, US-based lapidaries. This approach supports responsible mining, fair labor, and small businesses within our community.
A Promise You Can Trust
From the metals we select to the stones we set, we are dedicated to ensuring our jewelry not only looks good, but does good. You can wear your piece with confidence, knowing it was made with care for both people and planet.
Return Policy & Guarantee
Return Policy & Guarantee
If you have any questions prior to placing an order, please contact us.
Return Policy - We want you to love your purchase. But if for any reason it’s not the right fit for your style, we are happy to assist with a return for store credit within 14 days of delivery.
Jewelry Care Instructions
Jewelry Care Instructions
DIY Jewelry Cleaner
Remove when sleeping, bathing, swimming or working out. Use caution when applying hairsprays, lotions and perfumes when wearing our baubles. Their chemicals may cause the metal to tarnish and damage beads. Keep beads dry and periodically wipe away any moisture or debris with our complimentary microfiber cleaning cloth we include with every purchase. Store your treasure in our recyclable drawer gift box. Learn how to make our easy DIY jewelry cleaner.
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