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"platinum brooch"

Antique Demantoid Garnet, Diamond, Gold and Platinum Grasshopper Brooch

An Antique 18 karat gold and platinum brooch with demantoid garnets, diamonds and ruby. The brooch has 38 demantoid garnets with an approximate total weight of 1.10 carats, 34 diamonds with an approximate total weight of .60 carat, and a ruby eye. The 3 dimensional grasshopper brooch is positioned in a perched position.

Circa: 1910
Dimensions: 1/2" length x 1-3/8" width
Item #:  BO-16847
Price:   $19,500 – Call: (212) 644-6400
Antique Demantoid Garnet, Diamond, Gold and Platinum Grasshopper Brooch

French Antique Diamond, Pearl, Platinum and Gold topped Silver Set of Swallow Brooches

A set of three French Antique 18 kt gold and oxidized silver, platinum and enamel brooches with diamonds and pearls. The brooches have a combined total of 87 rose-cut diamonds with an approximate total weight of .50 carat, 4 bezel set old European-cut diamonds with an approximate total weight of .32 carat, and 3 hanging freshwater pearls. The brooches depict 3 swallows in flight. The brooches are finely engraved on the underside in a realistic feather motif. The later platinum diamond set chain connecting the three swallows is removable. Original fitted box. Swallows were highly symbolic in the 18th and 19th Centuries. They symbolized wanting your loved one to return home safely, faithfully, or to simply return home quickly.

Signed: French control mark
Circa: 1870's
Dimensions: Brooches: 1-3/4" length x 1-7/8" width (2) and 1-3/4" length x 2-1/4" width: length with platinum chain: 8".
Item #:  BO-17193
Price:   $25,000 – Call: (212) 644-6400
French Antique Diamond, Pearl, Platinum and Gold topped Silver Set of Swallow Brooches

Kohn Art Deco Diamond, Ruby, Emerald and Lapis Lazuli Jardiniere Brooch

An Art Deco platinum and gold brooch with diamonds, ruby, emerald and lapis lazuli by Kohn. The brooch has 38 round-cut diamonds with an approximate total weight of 1.20 carats, with ruby and emerald accents. The base of the jardiniere is formed of a single piece of lapis lazuli banded with red and black enamel. Exhibited at "Anything Goes: The Jazz Age" at the Nassau County Museum of Art, 24 March 2018 - 8 July 2018.

Artist: Kohn
Signed: “Kohn”
Circa: 1920's
Dimensions: ¾ inches in height x 2¼ inches in width
Item #:  BO-16257
Price:   $27,500 – Call: (212) 644-6400
Kohn Art Deco Diamond, Ruby, Emerald and Lapis Lazuli Jardiniere Brooch

Late Edwardian Diamond, Onyx and Platinum Brooch

A late Edwardian platinum brooch with diamonds and onyx. The brooch has milgrain-set old European-cut diamonds with an approximate total weight of 6.50 carats, H/I color grade, VS clarity, with baguette-cut onyx accents. The brooch is designed as a poppy blossom with articulated diamond-set knife-edge bars. With detachable brooch fitting.

Circa: 1920’s
Dimensions: 3-1/2" length x 1-5/8" widest
Item #:  BO-16478
Price:   $37,500 – Call: (212) 644-6400
Late Edwardian Diamond, Onyx and Platinum Brooch

E. M. Gattle & Co. Art Deco Diamond and Platinum Brooch

An American Art Deco platinum brooch with diamonds by E. M. Gattle & Co.. The brooch has 168 old European-cut diamonds with an approximate total weight of 4.50 carats, and 5 square-cut diamonds with an approximate total weight of .75 carat. The total approximate diamond weight of the brooch is 5.25 carats, H/I color, VS clarity. The brooch centers on a dimensional jardinière flanked by pierced foliate elements with a milgrain set diamond border. E.M. Gattle Co. was founded by Emanuel Gattle in the latter part of the 19th century. Originally, E.M. Gattle & Co. was located on Broadway in the theatre district. In 1907, the company moved to the corner of 38th Street and Fifth Avenue and, later, to 55th Street and Fifth Avenue, next to the St. Regis Hotel. One of their notable customers was Enrico Caruso, who shopped Gattle stores for jewelry. However, he was not only a shopper of Gattle, he also allowed his name and photograph to be used in Gattle advertising. Gattle became successful until the time they closed their doors. The firm closed in 1940, several years before the outbreak of World War II. Exhibited at "Anything Goes: The Jazz Age" at the Nassau County Museum of Art, 24 March 2018 - 8 July 2018.

Artist: E. M. Gattle
Signed: “Gattle”
Circa: 1920's
Dimensions: 1-1/8" height x 2-3/8" width
Item #:  BO-17053
Price:   $19,500 – Call: (212) 644-6400
E. M. Gattle & Co. Art Deco Diamond and Platinum Brooch

Ostertag Paris Art Deco Diamond and Platinum Double Clip Brooch

A French Art Deco platinum double clip brooch with diamonds by Ostertag. The double clip brooch has 182 round and baguette-cut diamonds with an approximate total weight of 9.50 carats, G/H/I color, VS/SI clarity. Original bill of sale from M.S.Arnold Ostertag. The clips are designed in a stylized wing motif. Signed box, 'Paris Arnold Ostertag'. The firm of Ostertag was founded in the 1920's by Swiss-born, Arnold Ostertag (1883 – c.1940) is said to have created objects that rivaled the creations of the more celebrated houses of Cartier, Van Cleef & Arpels, and Boucheron. The Ostertag Maison was located in Paris, at number 16 Place Vendôme near other important jewelry houses of the day. During the 1920s and 1930s, Ostertag was especially known for jewelry and objets d'art based on Asian and Indian designs. One style, known as Tutti Frutti, popular from the early 1920s to the late 1930s combined influences from Islamic religious architecture and so-called Hindu or Indian styles. Emeralds, carved rubies, and sapphires – often imported from worldwide locations – were interspersed with diamonds. The jewels were crafted into unique pieces using the highest known techniques of the day and arranged into flowers and leaves, studded with berries and fruit. Many of the creations were purchased by an elite clientele that ranged from empresses, kings, and dukes to celebrities. Ostertag was among the renowned Parisian jewelers, led by Cartier and Mauboussin that were invited to commission masterpieces in collaboration with other respected and well-known jewelry and timepiece houses of the day. Ostertag's objets d'art and decorative clocks made by the revered clockmaker, George Verger, are jeweled works of art. In 1929 Ostertag exhibited jewelry and objets d'Art at the Musee Galliera. Ostertag's Paris shop continued until late 1939 when he left for America where he died around 1940. His biographers, Proddow and Healy, write that Ostertag regularly visited America in years between World Wars I and II. They write that he would come to New York in mid-October, spend two months in Los Angeles, then visit Florida, and return to Paris via Cannes at Easter. After two months in Paris, he spent July in Deauville, August in the south of France, and September in Biarritz. At the onset of World War II, Maison Ostertag closed its doors forever. Discussed in Art Deco Jewelry by Sylvie Raulet, Rizzoli, 1985.

Artist: Ostertag
Signed: House marks (partial) and French Control Marks
Circa: 1938
Dimensions: 1-3/8" length x 2-5/8" width
Item #:  BO-17293
Price:   $45,000 – Call: (212) 644-6400
Ostertag Paris Art Deco Diamond and Platinum Double Clip Brooch

Cartier Paris Mid-20th Century Diamond, Lapis Lazuli, Gold and Platinum Pair of Brooches

A pair of French Mid-20th Century 18 karat gold and platinum brooches with diamonds and lapis lazuli by Cartier. Each ladybug clip/brooch has 6 round-cut diamonds with an approximate total weight of .60 carat which are bezel set into the carved lapis lazuli wings. With signed Cartier box. Similar pictured in Amazing Cartier, by Nadine Coleno, Flammarion, 2008, page 44-45.

Artist: Cartier
Signed: “Cartier Inc” Cartier makers mark “#0584”,“Cartier Inc” “France’ “18k” “#2120”
Circa: 1960's
Dimensions: 1'' length x 1'' width
Item #:  BO-16581
Price:  Price on Request. Call (212) 644-6400
Cartier Paris Mid-20th Century Diamond, Lapis Lazuli, Gold and Platinum Pair of Brooches

Cartier Mid-20th Century Diamond and Platinum Feather Brooch

A Mid-20th Century platinum brooch with diamonds designed in a stylized double feather motif by Cartier. The brooch features 132 round-cut diamonds with an approximate total weight of 5.00 carats, and 48 baguette diamonds with an approximate total weight of 4.00 carats, G/H/I color, VS clarity. With signed Cartier Box.

Artist: Cartier
Signed: “MTD" "Cartier" "1952" "#21576 WLNNINN”
Circa: 1952
Dimensions: 2-5/8" length x 1-3/4" width
Item #:  BO-16147
Price:  Price on Request. Call (212) 644-6400
Cartier Mid-20th Century Diamond and Platinum Feather Brooch
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