Vintage Octagon Halo Round Aquamarine Ring in Sterling Silver

Straight out of a 1920s jewelry box, reimagined for the way you live now. This vintage octagon halo aquamarine ring centers a round brilliant aquamarine inside a bold Art Deco octagon frame of baguette and round simulated diamond accents, all in solid 925 sterling silver with a bright rhodium finish. The cool sea-blue center against crisp white fire gives the ring genuine architectural presence — estate-jewelry drama built for everyday wear.

An Art Deco silhouette in silver

The octagon halo is the signature here — a geometric shape rarely seen in modern bridal jewelry, framing the round center with four baguette-cut accents at the cardinal points and round accents filling the corners and tracing the pave shoulders. It is the kind of strong-lined, symmetrical design that defined the Art Deco era, and it gives this ring a presence far larger than its modest price. If Old Hollywood glamour is what draws you, you will find kindred pieces throughout our vintage aquamarine jewelry edit and the wider aquamarine engagement rings collection.

The aquamarine center stone

At the heart sits a 6.0 mm round brilliant natural aquamarine, roughly 0.85 carat — the blue variety of beryl, the same gem species as emerald and morganite. The round brilliant cut is the most light-returning shape possible, and it shows off aquamarine’s signature clean, transparent clarity and cool blue color beautifully. A six-prong basket cradles the stone, offering more security than a standard four-prong setting for daily wear. Prefer to explore the color across other silhouettes? Browse our full aquamarine rings range, and if you are weighing your options, our guide to aquamarine versus diamond explains when an icy-blue center makes more sense.

Baguette and round simulated diamond accents

Framing the aquamarine is an octagon halo built from simulated diamonds — a crisp, budget-friendly way to add classic engagement-ring shimmer. The alternating baguette and round cuts create sharp architectural lines and a steady white sparkle that makes the cool blue center read even deeper. It is a pairing of clear cool blue against bright white fire, one of the most classically elegant color combinations in all of fine jewelry.

Solid sterling silver with a rhodium finish

The ring is crafted in hallmarked, nickel-free 925 sterling silver and finished with a layer of rhodium — the same precious metal used on fine white-gold jewelry. That rhodium finish gives the band a bright, mirror-white luster and adds a protective shield that helps resist tarnish and everyday scratches, so the silver keeps looking freshly polished. A 2.3 mm average band width and comfort-fit interior make it substantial enough to hold the halo yet smooth for all-day wear. See more of the same craftsmanship across our sterling silver aquamarine jewelry.

What aquamarine symbolizes

Aquamarine is the March birthstone and the traditional 19th anniversary gem, long carried by sailors as a talisman for calm seas and safe passage across water. It has come to stand for serenity, courage and clear communication — a quietly meaningful emblem for a lasting commitment. For more on the stone’s lore and birthstone tradition, our March birthstone rings guide is a lovely place to begin, and our aquamarine versus sapphire comparison helps you choose between the two most beloved blue stones.

Specifications

Sizing & care

Choose your size at checkout. If you are between sizes or unsure, reach out — we are happy to help, and resizing is available and starts from a modest fee. To keep the aquamarine and rhodium finish at their brightest, 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 beautifully. With gentle care, this is a ring made to be worn every day.