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Art Deco Platinum, Onyx, and Diamond Brooch

Art Deco Platinum, Onyx, and Diamond Brooch, set with fancy-cut black onyx, old European-cut diamond accents

An Art Deco diamond and gem-set brooch. Set with antique cut diamonds, emeralds…

Art Deco Diamond Multi-gem Brooch

Emerald Brooches An Art Deco diamond and gem-set brooch. Set with antique cut diamonds, emeralds, rubies, and hand carved petal shaped amethysts, mounted in

A pair of Art Deco or Art Deco-style platinum, gold, aquamarine & diamond clips, by Cartier. 3.6 x 3.4cm.

Art Deco or Art Deco-style platinum, gold, aquamarine & diamond clips, by Cartier.

An art deco sapphire and diamond brooch, circa 1925 centering an oval-shaped sapphire framed with several successive rows of old European and single-cut diamonds and calibré and triangular-cut sapphires; central sapphire weighing approximately: 2.50 carats; estimated total diamond weight: 2.60 carats; mounted in platinum. Google+

An art deco sapphire and diamond brooch, circa 1925 centering an oval-shaped sapphire framed with several successive rows of old European and single-cut diamonds and calibré and triangular-cut sapphires; central sapphire weighing approximately: carat

Broche ca. 1920 serti de rubis et diamant Taille brillant et baguette sur platine

The circular-cut diamond shield-shaped plaques decorated with variously-cut rubies, enhanced by baguette and trapeze-cut diamond detail, mounted in platinum, circa

AN ART DECO RUBY, DIAMOND AND BLACK ONYX PENDANT, circa 1925.

An art deco ruby, diamond and black onyx pendant, circa 1925 estimated total diamond weight: carats; mounted in platinum; measuring approximately: 3 x

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