Platinum and diamond circular brooch

Platinum diamond inlaid circular brooch with applied diamond inlaid bow. Apparently unmarked. Total approx. weight is 5.4 dwt (gross). From a Greenwich, CT estate. Dimensions: brooch measures approx.

Carved Rock Crystal, Platinum and Diamond Circle Brooch Circular beveled chipped rock crystal dia. ap. 35 mm., 6 baguette and 62 single-cut diamonds ap. .85 ct. C

Vintage Approx. 4.0 Carat TW Round Brilliant and Baguette Cut Diamlnd and Platinum Circular Brooch. Diamonds E-F color, VVS-VS clarity. Stamped Plat. Measures 1-1/4" diameter. Approx. weight: 12.17 gr

Platinum and Diamond Brooch, the circular-designed brooch set with thirty-two round brilliant-cut diamonds, with an approximate total weight of 1.60 carats, dia. 1-1/4", 4.5 grams total weight.

Edwardian Platinum and Diamond Brooch/Pendant ca. 1910, the circular platinum brooch with an openwork lacy pattern set with a central old European-cut diamond, surrounded by smaller European-cut diamo

Vintage platinum and diamond circular pin with interlocking ribbon form comprising of 3.6 ctw diamonds (VS - SI clarity, G-H color). Unmarked. Ahlers & Ogletree, Inc. reserves the right to demand paym

4.00ctw VS2-SI1/G-H Diamond and Solid Platinum 1.5" Circular Brooch - This beautiful brooch was finely crafted of solid platinum and has a circular shape with delicate pierced details finished with mi

Ladies' exquisite circular platinum brooch, set with approx. ten rectangular cut sections of stunning Amethyst, alternating with settings containing round brilliant cut Diamonds. Measures approx. 1-3/

A Diamond BroochThe circular brooch set with 34 round brilliant-cut diamonds weighing approximately 2.29 carats, in platinum.9.20 grams1 1/4" Dia.

An early 20th platinum and 18ct gold sapphire and diamond brooch. The circular-shape sapphire, within a rose-cut diamond surround and calibre-cut sapphire accents, to the rose-cut diamond sides. Frenc

Vintage circular platinum openwork brooch with central Old European cut diamond measuring approx. 4.0mm surrounded by single cut, round brilliant cut, and Old European cut diamonds. Total approx. weig

An Art Deco diamond and platinum clip/brooch set with circular-cut, kite-shaped, emerald-cut, and calveshead diamonds; estimated total diamond weight: 8.00 carats, all within an openwork setting. (15.

Two 18K gold and diamond brooches One is designed as a circular foliate brooch set with old European-cut diamonds mounted in platinum topped eighteen karat gold; the other is designed as a bow set wit

Platinum & diamond flower brooch, 20th c., set with marquise, circular and baguette cut diamonds, est 5.0 carats, G-H color, approx. 8.38 dwt. (total), unmarked Provenance: A Private Collection: 1111

DIAMOND EAGLE BROOCH Pavé-set throughout with old brilliant and single-cut diamonds, accented by a circular-cut tsavorite garnet eye, mounted in gold and platinum, diamonds approx. 1.45cts total,

DIAMOND BROOCH, 1930S of bar design in the Art Deco style, centred on a geometric arrangement of millegrain-set circular-cut and baguette diamonds, mounted in platinum and white gold, length 57mm, sta

A platinum and diamond brooch designed as a horseshoe set with seven bezel-set old European-cut diamonds; estimated total diamond weight 5.00 carats, accented by circular, marquise, and baguette-cut d

A diamond, emerald and platinum broochdesigned as a cluster of marquise-cut diamonds and circular-cut emeralds, among ribbons of round brilliant-cut diamond pavé; estimated total diamond weight:

ART DECO SAPPHIRE AND DIAMOND BROOCH, 1930S in platinum, designed as a bow, pave-set with circular-cut diamonds, accented with calibre-cut sapphires, estimated total diamond weight 12.00-14.00 carats,

A PLATINUM, EMERALD AND DIAMOND BROOCH Featuring two shield step-cut emeralds in a circular spray design with three dangling strands set with round, marquise-shaped, square and baguette diamonds weigh

This delicate platinum topped pin has an approx. .75 ct. Old European cut diamond dangling in the circular center that is flanked by two smaller Old European cut diamonds, approx. .55 ct. tw., accente

METAL: 18K yellow gold and platinum GEMSTONE(S): round faceted emeralds approx. 0.42 carat total; circular brilliant and single cut diamonds approx. 0.55 carat total MEASUREMENTS: 1-1/4 x 1-1/4 inches

Vintage Platinum & diamond brooch, c. 1950, set with a cluster of pear-shaped and marquise-cut diamonds, H-J color, VS-SI clarity, est. 10.0 carats, 2.5"l, approx. 18 dwt., illegibly stamped 869(?) Pr

Platinum Diamond Brooch, oval shape measuring approximately 2 x 1 ¼ inches; pave set with 158 round full and single cut diamonds, approximate total carat weight is 5.75 by formula;the diamonds averag