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Art Deco. Three Gemstone and Diamond Brooches -- Platinum, Amethyst, Sapphire and Diamond. c1930.

Art Deco. Three Gemstone and Diamond Brooches -- Platinum, Amethyst, Sapphire and Diamond. c1930.

http://rubies.work/0349-sapphire-ring/ Ruby and Diamond Brooch, 'Hibiscus', Michele Della Valle More

http://rubies.work/0349-sapphire-ring/ Ruby and Diamond Brooch, 'Hibiscus', Michele Della Valle More

A diamond brooch-pendant  designed as a bouquet of round brilliant, marquise, pear and baguette-cut diamonds; estimated total diamond weight: 18.00 carats; mounted in platinum.

A diamond brooch-pendant designed as a bouquet of round brilliant, marquise, pear and baguette-cut diamonds; estimated total diamond weight: 18.00 carats; mounted in platinum.

A tourmaline and diamond brooch  The heart-shaped pink tourmaline, within an old brilliant, single and rose-cut diamond ribbon and garland surround, old brilliant and single-cut diamonds approx. 0.30ct total, length 3.9cm, fitted case by Tessier, New Bond Street. Edwardian or Edwardian style or earlier.

A tourmaline and diamond brooch The heart-shaped pink tourmaline, within an old brilliant, single and rose-cut diamond ribbon and garland surround, old brilliant and single-cut diamonds approx. 0.30ct total, length 3.9cm, fitted case by Tessier, New Bond Street. Edwardian or Edwardian style or earlier.

AN ART DECO DIAMOND BROOCH, BY BOURDIER PARIS, CIRCA 1920. Designed as a ribbon bow, pavé set throughout with diamonds and set with a line of baquette cut diamonds to the centre knot, mounted in platinum, signed Bourdier Paris, with French assay marks. #Bourdier #ArtDeco #brooch

AN ART DECO DIAMOND BROOCH, BY BOURDIER PARIS, CIRCA 1920. Designed as a ribbon bow, pavé set throughout with diamonds and set with a line of baquette cut diamonds to the centre knot, mounted in platinum, signed Bourdier Paris, with French assay marks. #Bourdier #ArtDeco #brooch

Diamond Brooch, ca. 1955 The three strands of brilliant and baguette-cut diamonds arranged in the form of a knot and tassel, around a central brilliant-cut diamond, principal diamonds weighing 1.40, 1.26, 1.20 and 0.98 carats, remaining brilliant-cut diamonds weighing approximately 4.50 carats total, baguette-cut diamonds weighing approximately 4.00 carats total, length 7.0cm

Diamond Brooch, ca. 1955 The three strands of brilliant and baguette-cut diamonds arranged in the form of a knot and tassel, around a central brilliant-cut diamond, principal diamonds weighing 1.40, 1.26, 1.20 and 0.98 carats, remaining brilliant-cut diamonds weighing approximately 4.50 carats total, baguette-cut diamonds weighing approximately 4.00 carats total, length 7.0cm

An Art Deco aquamarine and diamond brooch, the baguette shaped aquamarine is millegrain set between two diamond set flower-head sections within rectangular diamond set border. 4cm long. #ArtDeco #brooch

An Art Deco aquamarine and diamond brooch, the baguette shaped aquamarine is millegrain set between two diamond set flower-head sections within rectangular diamond set border. 4cm long. #ArtDeco #brooch

A DIAMOND BROOCH Designed as a baguette-cut diamond ribbon, extending a marquise-cut diamond openwork cascade, mounted in platinum

A DIAMOND BROOCH Designed as a baguette-cut diamond ribbon, extending a marquise-cut diamond openwork cascade, mounted in platinum

A DIAMOND BROOCH   Designed as twin stylized palm trees, centering upon marquise-cut diamond clusters, extending vari-cut leaves to the baguette-cut diamond scrolling trunks, mounted in platinum

A DIAMOND BROOCH Designed as twin stylized palm trees, centering upon marquise-cut diamond clusters, extending vari-cut leaves to the baguette-cut diamond scrolling trunks, mounted in platinum

A Belle Epoque opal and diamond brooch, circa 1905. The single-cut diamond tied ribbon bow suspending an old brilliant-cut diamond and a circular cabochon opal with a single-cut diamond border, mounted in silver and gold, detachable brooch fitting. #BelleÉpoque #brooch

A Belle Epoque opal and diamond brooch, circa 1905. The single-cut diamond tied ribbon bow suspending an old brilliant-cut diamond and a circular cabochon opal with a single-cut diamond border, mounted in silver and gold, detachable brooch fitting. #BelleÉpoque #brooch

The openwork lozenge shape panel of foliate design, centering upon an oval-shaped ruby, within a brilliant-cut diamond and circular-cut ruby two-tiered surround and marquise-cut diamond trim, extending to the oval-shaped ruby and marquise-cut diamond quatrefoil clusters, alternating with old European-cut diamond and circular-cut ruby accents, mounted in 18k white gold, 5.8 cm long, with French assay mark for gold  Signed Van Cleef & Arpels

The openwork lozenge shape panel of foliate design, centering upon an oval-shaped ruby, within a brilliant-cut diamond and circular-cut ruby two-tiered surround and marquise-cut diamond trim, extending to the oval-shaped ruby and marquise-cut diamond quatrefoil clusters, alternating with old European-cut diamond and circular-cut ruby accents, mounted in 18k white gold, 5.8 cm long, with French assay mark for gold Signed Van Cleef & Arpels

An art deco sapphire and diamond brooch, circa 1930 The openwork shield-shaped…

An art deco sapphire and diamond brooch, circa 1930 The openwork shield-shaped…

Edwardian Emerald and Diamond Brooch, the drop set with a pear-shape emerald…

Edwardian Emerald and Diamond Brooch, the drop set with a pear-shape emerald…