A whole aurora captured in a single stone. The Cordelia opal engagement ring centers a hand-selected natural Australian opal — an oval cabochon that flickers with living play-of-color — framed by a vintage-inspired silhouette and bright simulated diamond accents. Crafted in solid 925 sterling silver, it is a romantic, one-of-a-kind alternative to the ordinary diamond solitaire.
Natural Australian opal
Solid 925 sterling silver
Rhodium finish
Vintage-inspired design
October birthstone
Free velvet gift box
A vintage-inspired silhouette
Cordelia takes its cues from antique jewels — a softly detailed setting that cradles the opal like a treasured heirloom rather than a modern showpiece. The oval cabochon sits proud of a slender 2 mm band, so the stone reads large and luminous on the hand while staying comfortable for everyday wear. It is a design for anyone who loves old-world romance but wants a stone with far more personality than a clear diamond. Explore the full range of opal engagement rings to see how many moods a single gemstone can hold.
The natural Australian opal
This is a genuine natural opal mined in Australia, cut as a smooth oval cabochon to show off its play-of-color to the fullest. Turn your hand and the stone shifts through flashes of blue, green, rose and gold, as though light itself were trapped inside. Because opal forms in the earth over millions of years, no two stones are ever identical — yours will share the same character you see in our photos with its own individual pattern of fire. If you would like to understand what makes this gem so special before you buy, our opal engagement ring guide is the perfect starting point. You will find more natural-opal designs throughout our opal jewelry collection.
Bright simulated diamond accents
Flanking the center stone, a scatter of simulated diamonds (CZ) adds crisp white sparkle that makes the opal’s colors read even more vividly. It is a bright, budget-friendly way to frame the stone with classic engagement-ring shimmer without competing with the opal itself. Prefer lab-grown diamond or moissanite accents instead? Message us — most of our designs can be tailored.
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 jewelry. That finish gives the band a bright, mirror-white luster and adds a protective shield that helps resist tarnish and everyday scratches, so a sterling silver ring wears like something far more expensive. The metal is nickel-free and hypoallergenic, making it kind to sensitive skin.
What opal symbolizes
As the October birthstone, opal has long been treasured as a stone of inspiration, imagination and faithful love — the Romans considered it a symbol of hope and good fortune. That makes Cordelia a meaningful choice for an engagement, an anniversary or an October birthday. For more on the lore and tradition behind it, see our October birthstone guide. Couples looking to pair their rings can also browse our opal couples rings.
Specifications
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Metal Solid 925 sterling silver with rhodium finish
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Center stone Natural Australian opal (unique play-of-color per stone)
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Shape & cut Oval cabochon
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Measurements 7.0 mm × 5.0 mm, approx. 0.7 ct
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Origin Australia
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Accents Simulated diamonds (CZ)
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Band width Approx. 2 mm
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Fit Runs true to size
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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; the ring runs true to size, and if the fit is not quite right, resizing is available and starts from a modest fee. Opal is a softer, water-sensitive gem, so remove the ring before showering, swimming, cleaning or applying lotions, and store it in the velvet box when not worn. A soft, dry cloth restores the shine. With gentle care it will keep its fire for a lifetime. If you are weighing opal against other October options, our fire opal engagement ring guide is a helpful companion read.
Frequently asked questions
Is the opal natural?
Yes. The center is a genuine natural Australian opal, cut as an oval cabochon to showcase its play-of-color. It is never dyed or painted, which is why every stone is unique.
Will my opal look exactly like the photos?
It will share the same character and color range, but the exact pattern of fire is one of a kind. No two natural opals are ever identical, so yours is truly unique to you.
What are the accent stones?
Bright simulated diamonds (cubic zirconia) that add crisp white sparkle and make the opal’s colors pop. If you would prefer lab-grown diamond or moissanite accents, reach out and we can tailor the design.
What metal is the ring made from?
Solid 925 sterling silver, finished with rhodium for a bright white luster and added 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 shine and adds a protective layer that helps the ring stay looking freshly polished.
How big is the opal?
The oval cabochon measures about 7.0 mm by 5.0 mm, roughly 0.7 carat, set on a slim 2 mm band so it reads generous and luminous on the finger.
Is opal durable enough for daily wear?
Opal sits around 5.5 to 6.5 on the Mohs scale, so it is best treated as a special-occasion or gently-worn ring. Avoid hard knocks and prolonged water exposure and it will stay beautiful for years.
Can it be worn as an engagement or promise ring?
Absolutely. Its vintage-inspired look makes it a romantic engagement ring, promise ring or October birthstone gift. Many couples pair it with a matching band from our opal couples rings collection.
How should I care for it?
Remove the ring before showering, swimming or applying lotions, wipe it with a soft dry cloth, and store it in the velvet box. Gentle care keeps both the opal and the rhodium finish luminous.
What size should I order?
The ring runs true to size, so choose your usual size at checkout. If you are between sizes or unsure, contact us for guidance. Resizing is available and starts from a modest fee.
Are the stones ethically sourced?
Yes. All of our stones are ethically sourced and conflict-free, so you can wear your 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, birthday or anniversary.
Where can I see more opal designs?
Explore our full opal engagement rings and wider opal jewelry collections to find the piece that speaks to you.
