Onyx for Auction - Ross's Auctioneers & Valuers
Onyx Like agate, onyx is a type of chalcedony (quartz) that is most commonly found in banded shades of black. Onyx can also be found as white, red, black and brown and, in its black form, is the most common and inexpensive black gemstone available. 

Because of its layered nature, onyx is often carved to create intaglios and cameos, to create an effective contrast between the background and foreground.

Onyx - auction results

There have been 74 Onyx sold in previous auctions
  • VICTORIAN GOLD-TONE HEART-SHAPED PENDANT SET WITH GARNET AND ONYX at Ross's Jewellery Auctions
    VICTORIAN GOLD-TONE HEART-SHAPED PENDANT SET WITH GARNET AND ONYX Sale Date: 07 May 2020
    Result: £90
  • 9CT GOLD AND ONYX SQUARE RING at Ross's Jewellery Auctions
    9CT GOLD AND ONYX SQUARE RING Sale Date: 26 March 2020
    Result: £10
  • STRAND OF FRESHWATER PEARLS AND ONYX WITH 9CT GOLD BEADS AND CLASP at Ross's Jewellery Auctions
    STRAND OF FRESHWATER PEARLS AND ONYX WITH 9CT GOLD BEADS AND CLASP Sale Date: 26 March 2020
    Result: £110
  • 
9CT GOLD SIGNET RING SET WITH ONYX at Ross's Jewellery Auctions
    9CT GOLD SIGNET RING SET WITH ONYX Sale Date: 30 January 2020
    Result: £70
  • VICTORIAN 9CT GOLD ONYX AND DIAMOND RING at Ross's Jewellery Auctions
    VICTORIAN 9CT GOLD ONYX AND DIAMOND RING Sale Date: 30 January 2020
    Result: £650
  • 9CT GOLD T-BAR AND COMPASS at Ross's Jewellery Auctions
    9CT GOLD T-BAR AND COMPASS Sale Date: 06 December 2019
    Result: £240
  • STERLING SILVER MARCASITE AND ONYX BROOCH at Ross's Jewellery Auctions
    STERLING SILVER MARCASITE AND ONYX BROOCH Sale Date: 06 December 2019
    Result: £40
  • 9CT GOLD T-BAR CHAIN WITH MULTI-GEM SET FOB at Ross's Jewellery Auctions
    9CT GOLD T-BAR CHAIN WITH MULTI-GEM SET FOB Sale Date: 06 December 2019
    Result: £160
  • STERLING SILVER ONYX RING at Ross's Jewellery Auctions
    STERLING SILVER ONYX RING Sale Date: 07 November 2019
    Result: £50
  • 9CT GOLD ECLIPSE QUARTZ AND DIAMOND RING at Ross's Jewellery Auctions
    9CT GOLD ECLIPSE QUARTZ AND DIAMOND RING Sale Date: 07 November 2019
    Result: £40
  • 9CT GOLD ONYX AND DIAMOND RING at Ross's Jewellery Auctions
    9CT GOLD ONYX AND DIAMOND RING Sale Date: 07 November 2019
    Result: £100