Jewellery · Gemstones

Onyx Jewellery

Vintage and antique jewellery set with black onyx. Pieces in stock include a Bulgari Tubogas onyx ring and a Tubogas onyx bangle with its original box, Bulgari Bulgari onyx clip earrings, Chatila onyx and diamond earrings and pendant in 18KT gold, Carrera y Carrera day and night earrings with onyx drops, and an archaeological revival gold ring with an onyx intaglio.

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Bulgari Tubogas 18KT gold and onyx bangle

Onyx jewellery in stock now

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Black onyx

Onyx is a banded chalcedony; the black onyx used in jewellery is polished to an even, deep black, often set against gold or diamonds.

Banded chalcedony and polished black onyx Left: a rough section of chalcedony showing natural parallel bands. Right: a polished oval of black onyx, even and deep black, set in a gold collet. Banded chalcedonyBlack onyx natural bands of colourpolished an even black, set in gold Drawn by Mozeris. Not to scale.

Onyx in signed jewellery

Onyx is used for contrast in pieces by houses such as Bulgari and Carrera y Carrera. Each listing states the maker and marks. See designer jewellery.

Questions about onyx jewellery

What is onyx?

A banded variety of chalcedony; black onyx is polished to a uniform black.

How should onyx jewellery be cleaned?

With a soft cloth and lukewarm water, avoiding harsh chemicals.

Is onyx suitable for a ring?

Yes, onyx is hard enough for regular wear, though it should be kept from hard knocks.

Why buy from us

  • Full description, measurements and hallmarks on every listing
  • View in person by appointment
  • Insured delivery