Adeline Marquise Cut Tanzanite Ring in Sterling Silver

Regal, elongated and unmistakably romantic, the Adeline marquise-cut tanzanite ring lengthens the finger with a slender navette silhouette that catches light from tip to tip. A deep violet-blue simulated tanzanite sits in a vintage-inspired floral setting, framed by shimmering simulated diamond accents and cast in solid 925 sterling silver with a bright rhodium finish. It is a December-birthstone engagement ring designed to feel like an heirloom from the very first wear.

A vintage silhouette made for the spotlight

The marquise cut has crowned royal jewelry boxes for centuries, and here it takes center stage. Its pointed oval shape stretches gracefully across the finger, creating the illusion of length while maximizing the surface area of the stone so the violet color reads bold and full. A delicate floral gallery cradles the gem, softening the geometry with an antique, feminine touch. If you are drawn to statement stones with old-world character, our wider tanzanite engagement rings collection carries the theme through marquise, oval and cushion silhouettes.

The simulated tanzanite center

The heart of the ring is a hand-set simulated tanzanite, engineered to capture the coveted violet-blue glow that made the real gem one of the most celebrated discoveries of the twentieth century. Measuring a generous 5.0 x 10.0 mm at roughly one carat, it delivers rich, saturated color and lively brilliance without the fragility or single-source scarcity of the mined stone. To explore the lore and symbolism behind the color, our guide to tanzanite meaning is a lovely place to begin.

Brilliant simulated diamond accents

Framing the marquise are hand-set simulated diamonds — a crisp, budget-friendly flash of white sparkle that makes the violet-blue center glow even deeper. Their bright fire echoes the shape of the floral setting and adds classic engagement-ring shimmer without overwhelming the star of the design. It is the kind of detail that lets a sterling silver ring wear like something far more expensive.

Solid sterling silver with a rhodium finish

The Adeline is crafted in solid 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, keeping the silver looking freshly polished. It is also hypoallergenic and nickel-free, so it wears comfortably day after day.

What tanzanite symbolizes

As the modern December birthstone, tanzanite is associated with transformation, truth and calm clarity — a fitting emblem for a promise made and a new chapter begun. Its regal violet has long been linked to dignity and intuition, which is part of why it feels so at home in a vintage silhouette. For gift-givers marking a winter proposal or birthday, our complete December birthstone guide offers thoughtful context, and you will find more violet pieces across our tanzanite jewelry range.

Specifications

Sizing & care

Choose your size at checkout. If you are between sizes or unsure, we are happy to help. To keep the stone and rhodium finish 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 restores the shine beautifully. With gentle care, this is a ring made to be worn every day.