Diana Oval Aquamarine Engagement Ring in Sterling Silver

One of the most recognizable engagement rings in the world, reimagined in blue. The Diana oval aquamarine engagement ring centers a generous two-carat oval aquamarine inside a sparkling halo of simulated diamonds, all set in solid 925 sterling silver with a rhodium finish. It is a royal-inspired silhouette with a serene, ocean-blue heart — timeless, romantic and unmistakably regal.

A royal-inspired halo design

The design takes its cue from the famous sapphire-and-diamond ring that became a symbol of modern romance — an oval center encircled by a bright halo and carried on a pavé-set band. Swapping the deep blue for a lighter, icier aquamarine gives it a fresh, contemporary softness while keeping every bit of that heirloom presence. It is a standout among our aquamarine engagement rings for anyone who wants a ring with a story built in. Explore the wider family of aquamarine rings to see the color in other settings.

The oval aquamarine at its center

An oval cut is prized for looking larger than its carat weight and for elongating the finger, and at roughly two carats this aquamarine has real presence on the hand. Its color is a clear, tranquil blue — the shade that gives the stone its sea-water name. This center is a lab-grown aquamarine, grown to deliver dependable clarity and an even, saturated blue. If you are torn between the classic royal blue and this cooler tone, our comparison of aquamarine versus sapphire engagement rings lays out the differences.

A halo of simulated diamonds

Circling the center and running down the shoulders are simulated diamonds — cubic zirconia selected for their crisp, colorless brilliance. The halo does two things at once: it makes the aquamarine appear larger and it throws off a continuous ring of white sparkle that flatters the blue. It is the detail that makes this design feel red-carpet ready without the red-carpet price. If you are choosing between an aquamarine center and a traditional diamond, our guide on aquamarine versus diamond weighs up the trade-offs. Prefer moissanite or lab-grown diamond accents? Just ask.

Solid sterling silver with a rhodium finish

The ring is crafted in solid 925 sterling silver and plated in rhodium, the same precious metal that finishes fine white gold. That rhodium layer gives the band a bright, mirror-white luster and a protective shield against tarnish and daily scratches, so the silver keeps its just-polished look. It is nickel-free and hypoallergenic, made to be worn every day with confidence.

What aquamarine symbolizes

Aquamarine has long been linked to calm, clarity and faithful love — a fitting emblem for a lasting commitment and the birthstone for March. That blend of meaning and beauty is exactly why it has become such a popular non-traditional engagement stone. For gift ideas that lean into the birthday, see our roundup of March birthstone rings.

Specifications

Sizing & care

Select your size at checkout. If you are unsure or between sizes, reach out and we will help, and resizing is available starting from a modest fee. To keep the aquamarine and halo at their brightest, remove the ring before showering, swimming or applying lotions, and store it in the velvet box when not worn. A soft, dry cloth revives the shine. You will find the same craftsmanship across our aquamarine jewelry range.