Stella Black Onyx Engagement Ring in Sterling Silver

A fixed point of light in a dark sky. The Stella black onyx ring sets a bold oval of deep, glossy jet-black natural onyx at its heart, framed by a vintage-inspired North Star motif of crisp simulated diamonds. Crafted in solid 925 sterling silver with a bright rhodium finish, it is a celestial onyx engagement ring built around the idea of guidance, strength and constancy — the star you steer by, worn on the hand.

The natural black onyx center

At the center sits a bold oval of natural black onyx — a variety of chalcedony cherished for centuries for its deep, opaque, mirror-glossy black. Onyx has appeared in signet rings, amulets and cameos since ancient Greece, valued as much for its striking color as for its associations with strength and steadiness. Polished to a high shine and cut in a flattering oval, this stone reads as pure, saturated jet-black across its whole surface, the ideal dark canvas for the sparkle around it. To go deeper on the stone’s history and lore, our guide to black onyx meaning is a lovely starting point.

A North Star of simulated diamonds

Framing the onyx is a halo of simulated diamonds (CZ) arranged as a vintage celestial star — a crisp, brilliant white sparkle that plays beautifully against the depth of the black. It is a bright, budget-friendly way to add classic engagement-ring shimmer, and the contrast of glittering white on jet-black is exactly what gives the design its starlit, night-sky drama. The result feels both antique and modern, at home in our wider world of gothic engagement rings.

Solid sterling silver with a rhodium finish

The ring is crafted in solid 925 sterling silver — never plated base metal — and finished with rhodium, the same precious metal used on fine white gold. That rhodium finish gives the silver a bright, mirror-white luster and adds a protective layer that helps resist everyday tarnish and scratches, so the metal keeps its freshly polished shine. It is the detail that lets a sterling silver ring wear like something far more expensive, and it keeps the focus on the black-and-white contrast.

What black onyx symbolizes

Black onyx is traditionally the stone of strength, protection and grounded resolve — a talisman for steadiness through change. Paired with the guiding North Star, the Stella becomes a quietly meaningful choice: a promise to stay true, to steady one another, to keep a fixed point in view. That symbolism makes it as fitting for a proposal or promise as it is for an anniversary or a milestone gift. You can read more in our guide to black gemstones.

How to wear it

Minimalist enough for every day and bold enough to make a statement, the Stella moves easily from desk to dinner. It works as a striking engagement or promise ring, stacks beautifully with plain or milgrain bands, and makes a thoughtful gift for anyone who loves silver-and-black or celestial style. Pair it with a matching band from our black onyx wedding bands for a complete look.

Specifications

Sizing & care

The Stella runs true to size. If you are between sizes or unsure, message us before ordering and we are happy to help — and if the fit isn’t quite right, resizing is available and starts from a modest fee. To keep the onyx and rhodium finish at their brightest, remove the ring before showering, swimming or applying lotions and perfumes, 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.