This vintage-inspired engagement ring pairs a cabochon-cut black onyx with two small cubic zirconia stones that catch the light on either side of the central stone. The onyx has a deep, matte black colour with no translucency or flaws - a piece this even across its whole surface isn't easy to come across twice. The very big setting emphasises the ring's bold, retro silhouette, and the domed cabochon catches light differently from a flat facet, gathering it into a single point at the centre of the stone.

We hand-pick each stone for colour purity, which is why this quality at this price rarely comes around twice - silver and good-quality onyx are getting more expensive, so today's price is still reasonable. The ring weighs 5.9 g and is made from refined sterling silver 925 of European quality, free of nickel and other harmful additives, so the metal is gentle on skin even with prolonged hand contact. Rhodium plating adds a wear-resistant layer to the surface, so the silver resists tarnishing and keeps its shine much longer. The piece is stamped with the French maker's mark, which establishes the origin of the piece and is registered with the assay office in France. In old-world craftsmanship, onyx was associated with strength, endurance and self-confidence, which fits well with the symbolism of an engagement.

A ring like this suits a romantic look well - next to a lace blouse, powder pink, or a dress with a small floral print, the black of the onyx draws the eye clearly against lighter colours. The open-palm gesture used to show off a ring further highlights the bold setting and the play of light across the cabochon. You can wear it every day with a silk blouse in ecru, or save it for evening, when a pastel dress becomes the backdrop for this one dark accent on your finger.