A solid white opal and diamond set brooch, 18ct yellow gold and platinum, retailed through Catanachs, presented as a solid cabochon white opal of strong blocked spectral colours, lime, red, blue and violet throughout, weighing approximately 1`6.80ct, bezel
A stunning solid black opal and diamond brooch/pendant, 18ct and 14ct white gold, antique styled, the feature oval cluster set with a central solid black opal from Lightening Ridge, weighing approximately 2.88ct, intense colours throughout of red, blue, gr
A solid crystal opal set brooch/pendant, 18ct yellow gold, made as a detachable drop which converts to a pendant and top bow style gold brooch, the opal of oval cabochon cut, crystal material with beautiful blue,violet and green spectral colours throughout
An enamelled opal set gold brooch, 18ct yellow gold, circa: 1970's of Italian manufacture, crafted as a round panel, featuring a central solid crystal opal to centre, round and cabochon cut, measuring approximately 14mm, claw set in an open backed moun
An enamelled opal set Orchid brooch, 14ct yellow gold, made as a vintage stylise orchid flower, enamelled throughout with shades of blue and green enamel, further detailed by clusters of small cabochon round crystal opals, each claw set, completed with pin
An antique opal and diamond bar brooch, the oval solid black opal cut en cabochon displaying red, green and blue colours, surrounded by fourteen single cut diamonds, set above a knife edge bar, mounted in 18ct white gold.
An opal and diamond pendant/brooch, the pierced scroll frame set throughout with round brilliant cut diamonds, centrally suspended with a pear shaped solid white opal cut en cabochon displaying good play of colour, suspended to a trace chain, all mounted i
An Australian Solid Opal and Gold Brooch by Jochim M Wendt, 70 Rundle Street, Adelaide, circa 1900, set with a Cooper Pedy off-oval solid white opal on a plain gold bar marked 'Wendt/9CT, opal approx. 28 x 19 x 5.5mm, approx 15 carats
18ct gold, coloured diamond, diamond and gem-set brooch, modelled as a peacock resting on a 14.85mm South Sea cultured pearl, the eyes accented with a circular-cut ruby, the neck and saddle pave set with brilliant-cut diamonds of yellow hue, the breast sim
A solid opal set bar brooch, 9ct yellow gold, made as a simple vintage bar brooch of fine proportion, featuring a central oval cut solid white opal, displaying pale green, blue and orange flashes in a fine bezel setting with open back and pierced gallery,
An antique Australian opal and diamond brooch/pendant, the pierced oval plaque set with solid white opals cut en cabochon and interspaced with old European cut diamonds, with detachable bale and brooch pin fitting, mounted in 15ct gold, boxed.
A retro opal and diamond set brooch/pendant. 18ct yellow gold, circa: 1960's, made as an abstract triangular formed brooch with central solid crystal opal of varied colour, bezel set in an open backed mount, framed by ten tiny brilliant cut diamonds, b
14ct white gold, opal and diamond brooch, Centring a claw-set cushion-shaped opal measuring approximately 18.00 x 14.00 x 8.00mm framed by a line of brilliant-cut diamonds flanked by a foliate motif embellished with diamonds, the diamonds together weighing
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