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A Cartier Art Deco diamond double clip brooch A fine Cartier Art Deco diamond double clip brooch, the geometrically-designed brooch set throughout with brilliant-cut and baguette-cut diamonds, estimated to weight a total of 3.65 carats, all set to a platinum mount with detachable brooch fittings, signed Cartier, circa 1920, gross weight 11.4 grams

A Cartier Art Deco diamond double clip brooch A fine Cartier Art Deco diamond double clip brooch, the geometrically-designed brooch set throughout with brilliant-cut and baguette-cut diamonds, estimated to weight a total of 3.65 carats, all set to a platinum mount with detachable brooch fittings, signed Cartier, circa 1920, gross weight 11.4 grams

A pair of superb diamond double clips by Cartier. Containing Old Mine diamonds, emerald cuts and baguettes totaling aprox 19.50 carats. Both signed Cartier London with Cartier Makers Marks, & French Hallmarks. Made in Paris workshop retailed for London branch. Set on Platinum. Circa 1930

A pair of superb diamond double clips. Containing Old Mine diamonds, emerald cuts and baguettes totaling aprox carats.

An Art Deco diamond set brooch, of rectangular shape with corners cut away, with an openwork pattern comprising of a central, round brilliant-cut diamond with an estimated weight of 0.35ct, with a baguette-cut diamond to the top and bottom of the rectangle, total estimated diamond weight 4.5cts,all mounted in white metal, tested and valued as platinum, overall dimensions 44x22mm, gross weight 11.4 grams, circa 1920.

An Art Deco diamond set brooch, of rectangular shape with corners cut away, with an openwork pattern comprising of a central, round brilliant-cut diamond with an estimated weight of with a baguette-cut diamond to the top and bottom of the rectangl

An Art Deco platinum, diamond and multi-coloured sapphire brooch, by Cartier, circa 1935. The openwork shield form brooch set with brilliant-cut diamonds, centring multi-coloured sapphires, mounted in platinum.

Art Deco platinum, diamond and multi-coloured sapphire brooch, Cartier, circa

Pair of onyx, diamond and enamel clip-brooches, Cartier, circa 1925. Designed as…

Pair of onyx, diamond and enamel clip-brooches, Cartier, circa Designed as…

Art Deco diamond engagement ring with 1.13 carat European cut diamond. Via Diamonds in the Library.

Ring roundup: Art Deco engagement rings

Art Deco diamond engagement ring with carat European cut diamond. Via Diamonds in the Library. (A Diamond Affair)

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