Art Deco Platinum and Diamond Pendant/Brooch, Cartier, France, set with an old European-cut diamond weighing approx. 1.75 cts., further set with old European- and single-cut diamonds, approx. total wt. 12.50 cts., millegrain accents

Art Deco Platinum and Diamond Pendant/Brooch, Cartier, France, set with an old European-cut diamond weighing approx. 1.75 cts., further set with old European- and single-cut diamonds, approx. total wt. 12.50 cts., millegrain accents

AN ART DECO BUTTERFLY BROOCH   The pavé-set diamond wings, interspersed with buff-top calibré-cut sapphires and demantoid garnets, accented by black enamel to the baguette and bullet-cut diamond body, mounted in platinum (one small demantoid garnet deficient), circa 1925

AN ART DECO BUTTERFLY BROOCH The pavé-set diamond wings, interspersed with buff-top calibré-cut sapphires and demantoid garnets, accented by black enamel to the baguette and bullet-cut diamond body, mounted in platinum (one small demantoid garnet deficient), circa 1925

1920's diamond and pearl geometric pattern brooch.  Art Deco.  Vintage jewelry.

1920's diamond and pearl geometric pattern brooch. Art Deco. Vintage jewelry.

A late art deco sapphire diamond and platinum brooch the double fan-shaped brooch centering a European-cut diamond accented by calibré-cut sapphires and transitional round brilliant-cut diamonds; estimated total diamond weight: 4.00 carats.

A late art deco sapphire diamond and platinum brooch the double fan-shaped brooch centering a European-cut diamond accented by calibré-cut sapphires and transitional round brilliant-cut diamonds; estimated total diamond weight: 4.00 carats.

Art Deco Platinum, Rock Crystal, Diamond and Emerald Brooch The modified hexagonal-shaped rock crystal plaque tipped by pierced fancy-shaped platinum terminals, accented by old-mine and single-cut diamonds and calibre-cut emeralds, with French assay mark, circa 1920.

Art Deco Platinum, Rock Crystal, Diamond and Emerald Brooch The modified hexagonal-shaped rock crystal plaque tipped by pierced fancy-shaped platinum terminals, accented by old-mine and single-cut diamonds and calibre-cut emeralds, with French assay mark, circa 1920.

*AN ART DECO EMERALD AND DIAMOND BROOCH  The central octagonal emerald within an onyx and diamond surround to the openwork rectangular panel and diamond fringe with cabochon sapphire and ruby floral detail and onyx terminals, circa 1925.

*AN ART DECO EMERALD AND DIAMOND BROOCH The central octagonal emerald within an onyx and diamond surround to the openwork rectangular panel and diamond fringe with cabochon sapphire and ruby floral detail and onyx terminals, circa 1925.

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: 2.50 carats; estimated total diamond weight: 2.60 carats; mounted in platinum. Google+

An Art Deco bracelet, by Cartier Paris, created in 1930 for the Aga Khan. Platinum; central enamel weighing 76 karats; band set with engraved sapphire and emerald leaves and onyx. The large emerald is engraved with text from the Quran. Image source: Cartier, by Hans Nadelhoffer #Cartier #ArtDeco #bracelet

An Art Deco bracelet, by Cartier Paris, created in 1930 for the Aga Khan. Platinum; central enamel weighing 76 karats; band set with engraved sapphire and emerald leaves and onyx. The large emerald is engraved with text from the Quran. Image source: Cartier, by Hans Nadelhoffer #Cartier #ArtDeco #bracelet

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