A Platinum and Diamond Brooch, 6.80 dwts.

Platinum & diamond circle brooch, c1915, 3.25 dwts

RBC, OEC and single cut diamonds approximately 8 cts TW. Approximately I-K, SI. 11.1 dwts.

Platinum and Diamond Brooch 10 round, 42 oval and 28 baguette diamonds ap. 7.15 cts., ap. 12 dwts. •

Van Clief Gold, Platinum and Diamond Brooch 18 kt., 101 round and 9 single-cut diamonds ap. 5.25 cts., signed Van Clief, ap. 17.7 dwts. C

Platinum and Diamond Broochthe bow-form brooch comprising full- and single-cut diamonds weighing approx. 1.50 tcw. with open-work millegrain decoration; 7.90 dwts; lg. 3 in.Provenance: The Collection

RBC, marquise and baguette cut diamonds approximately 8 cts TW. Approximately GH, VS. 12.7 dwts.

Platinum and Diamond Brooch 9 old European-cut diamonds ap. 1.60 cts., 62 old-mine and old European-cut diamonds ap. 1.05 cts., ap. 6.5 dwts. C Property of a New York Estate

Platinum and Diamond Brooch One old European-cut diamond ap. .50 ct., old European and single-cut diamonds ap. 2.00 cts., ap. 5.8 dwts. With box. C

Platinum and Diamond Broochin the form of a heart and arrow set throughout with full- and baguette-cut diamonds; diamonds weighing approx. 1.65 tcw.; 6.62 dwts.; 1 1/4 x 1 3/8 in.; accompanied by a Ma

An 18 Karat Yellow Gold, Platinum and Diamond Brooch, containing 15 round brilliant cut diamonds weighing approximately 0.75 carat total. Stamp: H 18K. 15.10 dwts.

Synthetic sapphires. OEC diamonds approximately .45 cts. 3.3 dwts.

Platinum,14k white gold diamond and sapphire brooch, GIA,14.2 dwts. Length: 1.75 inches. This brooch is platinum(main body) and 14k white gold(catch and pin back).It contains an oval sapphire with a G

Tiffany & Co., Schlumberger Gold, Platinum and Diamond 'Ibex' Brooch 18 kt., round diamonds ap. 1.25 cts., one pear-shaped ruby eye, signed Tiffany & Co., Schlumberger, ap. 13.8 dwts. With signed box.

BOUCHERON Platinum, Wood, and Diamond Broochthe bow brooch featuring carved wood and old European-cut diamonds; signed Boucheron Paris; French assay marks; 3.80 dwts.; 3/4 x 1 1/2 in.Provenance: Prope

9 oval jade ap. 11.1 x 7.2 mm. to 8.1 x 5.7 mm., 58 round and single-cut diamonds ap. 1.45 cts., signed Gump's, Made in HK, ap. 15 dwts.

Platinum, Diamond and Sapphire Brooch One old European-cut diamond ap. .80 ct., single and rose-cut diamonds, square-cut sapphires, c. 1915, one sapphire missing, ap. 10.3 dwts. C Collection of an Eas

Platinum, Sapphire, and Diamond Brooch featuring seven round cabochon sapphires and 15 full-cut diamonds weighing approx. 0.75 tcw.; 19.66 dwts.; lg. 7 in.

Platinum and 18k yellow gold and diamond jockey brooch, c.1970, 4.7 dwts. This brooch has approximately 42 round VS1 G color .03ct single cut diamonds, for a total diamond weight of 1.20 carats. 1.75"

Marcus & Co. Platinum, Gold, Amethyst and Diamond Brooch One lozenge-shaped amethyst ap. 27.0 x 18.0 x 9.7 mm., rose-cut diamonds, signed M & Co., c. 1915, ap. 8.2 dwts. C

Platinum, Carved Jade and Diamond Brooch One rectangular carved jade ap. 33.0 x 19.0 x 3.0 mm., 6 transitional and 66 single-cut diamonds ap. 1.35 cts., c. 1920, ap. 8.8 dwts. gross. C

An Antique Platinum, White Gold and Diamond Brooch, containing 84 old mine and rose cut diamonds weighing approximately 10.00 carats total. Scratchmark: 306 5339. 15.90 dwts.

Retro Gold, Platinum, Moonstone, Diamond and Ruby Brooch 12 oval moonstones, 8 round rubies, 4 round and 3 single-cut diamonds, c. 1940, ap. 21.5 dwts. C

David Webb Hammered Gold, Platinum and Diamond Flower Clip-Brooch 18 kt., 9 round diamonds ap. 1.85 cts, signed Webb, ap. 36.6 dwts. C

Platinum and Diamond Filigree Pendant-Brooch One old-mine cut diamond ap. .70 ct., 98 old-mine and old-mine single-cut diamonds ap. 3.45 cts., c. 1915, ap. 9.7 dwts. C Property of a New York Estate