Onyx is the parallel banded form of chalcedony. Black onyx was a beloved gem material during the Art Deco era and was commonly used to create bold and geometric colour contrasts.
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A modern Moira pink sapphire rose brooch and earrings suite, comprising a rose brooch, with pavé set pink sapphire petals, edged with old-cut...
An Art Deco diamond and platinum double clip brooch, with pavé and grain set old-cut and rose-cut diamonds, in a stylised design of swags and...
A modern sapphire and platinum line bracelet, channel set with a single row of square-cut sapphires, in individually hinged links, with foliate...
A modern ruby, diamond and platinum line bracelet, channel set with five sets of seven square-cut rubies, with a total weight of 4.19 carats,...
A modern ruby and platinum line bracelet, channel set with a single row of French-cut rubies, in individually hinged links, with foliate engraved,...
A modern diamond and platinum line bracelet, channel set with a single row of baguette cut diamonds, in individually hinged links, with polished,...
A French Belle Époque Thibault & Jolivot sapphire, diamond and platinum bracelet, comprising long oval links, with central cushion shaped...
A pair of enamel and gold cufflinks, with an embossed flower centre, acanthus leaves at the quarters, alternating with white enamel and a ribbon...
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An Art Deco black onyx and diamond dress-set, comprising cufflinks, buttons and collar studs, set with baguette-cut diamonds in the centre, on a...
A pair of lavender jade and diamond earrings, with lavender jadeite jade cabochon centres, with a flower shaped surround, with pavé set, old-cut...
An Art Deco black onyx tassel pendant necklace, comprising of multiple rows of graduating black onyx beads, hanging below a brilliant-cut diamond...
An Art Deco butterfly choker, by Spaulding & Co, with a central butterfly, with open wings, flanked by two butterflies, with closed wings, on...
A French Art Deco diamond, coral, black onyx and platinum brooch, with an open, circular centre, set with buff top black onyx, in a channel...
A pair of Art Deco, coral, black onyx and diamond cufflinks, with a diamond set in the centre of three, diagonally set, black onyx squares in a...
A carved rock crystal and black onyx rondelle bead necklace, sixty-one carved rock crystal beads measuring approximately 13-14mm each, separated by...
A carved rock crystal bead necklace, with black onyx rondelles, with an 18ct white gold pavé set black and white diamond ball clasp. Length...
A pair of French, Art Deco, black onyx and ruby cufflinks, mounted in platinum, with square-cut rubies, in heavy, platinum, square settings, within...
A French, Art Deco, black onyx, diamond, frosted rock crystal and gold dress-set, by Georges Thibault, with flat circular black onyx centres,...
A frosted rainbow moonstone and black onyx dress-set, comprising of a pair of cufflinks and three studs, with rub-over set diamonds in the centres,...
A pair of Jean Schlumberger for Tiffany & Co. black onyx and turquoise cufflinks, with turquoise studded black onyx spheres, on 18ct gold,...
A pair of modern black onyx, rock crystal and diamond cufflinks, with a round brilliant-cut diamond set in the centre, in a rub over setting,...
A black onyx and diamond dress set by Weingrill, mounted in 18ct yellow gold, set with black onyx and a diamond in each plate, in a square shape...
