Cartier Art Deco Platinum, Onyx, and Diamond Bow Brooch, Paris, the center diamond weighing approx.

An Art-Deco black onyx bow brooch ca 1930's. 14k white gold double pin back and frame. Diamonds set in platinum weighing approximately three carats total weight including center marquise cut diamond.

Art Deco dreicer & Co platinum bow brooch set with approx. 0.66ctw in rose cut diamonds and onyx. Some onyx stones are chipped. Brooch is 53mm x 12mm. Marked: Dreicer & Co, tested Platinum. Weight - 7

Platinum geometric bow pin featuring diamonds weighing approx. 3.00 ctw with an average color grade of G-H and an average clarity grade of VS, bead set with French cut black onyx channel set in design

Art Deco Diamond, Emerald, Black Onyx and Platinum Brooch. Set in the center with an approx. .65 carat old European cut diamond, H-I color, VS2 clarity. Accented with approx. 3.50 carat TW old Europea

METAL: Platinum. GEMSTONES: Old mine cut diamonds total approx. 1.55ctw. Center diamond approx. 0.65ct. MEASUREMENTS: Brooch is 51mm x 19mm. TESTED: Plat. WEIGHT: 10.1 grams.Gemstones have not been gr

Art Deco Platinum brooch with 14k gold stem, set with old mine cut diamonds. Center diamond approx. 0.65ct, side diamonds approx. - 0.84ctw. Brooch measures - 46mm x 19mm. Tested: Plat (brooch), Marke

Art Deco Brid Brooch crafted in Platinum, set with Single Cut Diamonds weighing Approx. 1.25 carats. Along with one tiny Ruby. Measurements: 1.4 x 1.1 inches. Weight: 8.3 grams

Platinum Art Deco brooch with black onyx and diamond bow brooch, 2 in. L, 9 grams

Nice looking Art Deco Brooch crafted in Platinum, Set with Old mines and Rose cut Diamonds Approx. 1.48ctw (Center Old mine Diamond is Approx. 0.50cts. H color, SI clarity). Accented with Natural Blue

METAL: Platinum. MEASUREMENTS: Brooch is 35mm x 17mm. GEMSTONES: Diamonds approx. 1.40ctw (center stone approx. 0.40-0.44ct). TESTED: Plat top. WEIGHT: 7.7 grams.Gemstones have not been graded for col

Brooch measures 29mm x 22mm, set with approx. 1.00ctw in diamonds (center stone approx. 0.450ct) Tested plat. Weight - 5.7 grams.Gemstones have not been graded for color and clarity ,and tested for cl

METAL: Platinum. GEMSTONES: old mine and rose cut diamonds approx. 263 stones., center stone is approx. 0.70ct. MEASUREMENTS: Brooch is 57mm x 40mm. TESTED: Platinum. WEIGHT: 18 grams.Gemstones have n

AN ART DECO PLATINUM AND DIAMOND BOW BAR BROOCH the central stone approx. 0.15 ct. 9 grams. 3.75 cm x 3.25 cm.

Art Deco platinum step mounting diamond ring, center old European cut diamond weighing approx. .15 ct, with round accent diamonds, size 7.5, 2.3 DWT.

Topped 18kt Gold Ring. Central Old European cut diamond weighing approx. 0.33 cttw, approx. color of I, approx. clarity of VS. Total approx. weight of rose cut diamond accents is 0.25 cttw. Total appr

c. 1920s platinum diamond ring featuring center diamond weighing approx. 0.30 ct with additional diamonds bead set in step down design, sz 5.5, 2.3 grams

Art Deco platinum brooch/pin decorated with mixed cut diamonds. Center stone- Old European cut diamond-approx. 0.79ct (VS2/I), two side stones-Old European cut diamonds-approx. 0.55ctw (SI1-SI2/I-J),

METAL: Platinum. MEASUREMENTS: Pendant is 38mm x 21mm. GEMSTONES: Onyx, Diamonds approx. 2.20ctw. TESTED: Plat. WEIGHT: 10.3 grams.Gemstones have not been graded for color and clarity ,and tested for

Art Deco Diamond, Platinum Circle Bow Brooch. Featuring thirty-nine old European-cut diamonds weighing a total of approximately 3.25 cttw., set in a platinum circle bow brooch mounting measuring appro

Wreath Brooch. With high quality diamonds weighing approx. 2 cttw. Total approx. weight is 4.3 dwt. From a Rockland County, NY location. Dimensions: 1.25" diameter.

Art deco 18k yellow Gold and Platinum on top, featuring three Old mine Diamonds weighing Approx. 0.60 carats. Along with Rose cut Diamonds and natural blue Sapphires weighing Approx. 1.00 carats. Broo

Boxed tuxedo set of (8) Art Deco hexagonal black onyx, diamond, platinum and 9 ct white gold pair cufflinks, 4 buttons and 2 shirt studs, all with round full-cut center diamonds, total wt. approx .60c

Comprising three rings set with white or cognac OEC diamonds, weighing approx. .75 ct. TW, in pierced and millegrained filigree platinum or 18k white gold, two with synthetic sapphires, diamond melee,

* An Art Deco Platinum, Diamond, Onyx and Emerald Bar Brooch, French, containing 133 old European and round single cut diamonds weighing approximately 2.70 carats total, 36 calibre cut onyx, and eight