Sold2022Platinum & diamond circle brooch, c1915, 3.25 dwtsPlatinum & diamond circle brooch, c1915, 3.25 dwtsSee Sold Price
Sold2015Platinum Diamond Brooch.RBC, OEC and single cut diamonds approximately 8 cts TW. Approximately I-K, SI. 11.1 dwts.See Sold Price
Sold2022Platinum and Diamond BroochPlatinum and Diamond Brooch 10 round, 42 oval and 28 baguette diamonds ap. 7.15 cts., ap. 12 dwts. •See Sold Price
Sold2022Van Clief Gold, Platinum and Diamond BroochVan 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. CSee Sold Price
Sold2020Platinum and Diamond BroochPlatinum 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 CollectionSee Sold Price
Sold2015Platinum & Diamond Circle Brooch.RBC, marquise and baguette cut diamonds approximately 8 cts TW. Approximately GH, VS. 12.7 dwts.See Sold Price
Sold2022Platinum and Diamond BroochPlatinum 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 EstateSee Sold Price
Sold2022Platinum and Diamond BroochPlatinum 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. CSee Sold Price
Sold2022Platinum and Diamond BroochPlatinum 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 MaSee Sold Price
Sold2018An 18 Karat Yellow Gold, Platinum and Diamond Brooch,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.See Sold Price
Sold2015Platinum & Diamond Circle Brooch.Synthetic sapphires. OEC diamonds approximately .45 cts. 3.3 dwts.See Sold Price
Sold2020Platinum 14k white gold diamond sapphire brooch, GIAPlatinum,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 GSee Sold Price
Sold2023Tiffany & Co., Schlumberger Gold, Platinum and Diamond 'Ibex' BroochTiffany & 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.See Sold Price
Sold2021BOUCHERON Platinum, Wood, and Diamond BroochBOUCHERON 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: PropeSee Sold Price
Sold2023Gump's Platinum, Jade and Diamond Brooch9 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.See Sold Price
Sold2023Platinum, Diamond and Sapphire BroochPlatinum, 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 EasSee Sold Price
Sold2019Platinum, Sapphire, and Diamond BroochPlatinum, 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.See Sold Price
Sold2018Platinum diamond jockey brooch,c.1970, 4.7 dwtsPlatinum 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"See Sold Price
Sold2022Marcus & Co. Platinum, Gold, Amethyst and Diamond BroochMarcus & 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. CSee Sold Price
Sold2022Platinum, Carved Jade and Diamond BroochPlatinum, 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. CSee Sold Price
Sold2018An Antique Platinum, White Gold and Diamond Brooch,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.See Sold Price
Sold2022Retro Gold, Platinum, Moonstone, Diamond and Ruby BroochRetro 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. CSee Sold Price
Sold2022David Webb Hammered Gold, Platinum and Diamond Flower Clip-BroochDavid Webb Hammered Gold, Platinum and Diamond Flower Clip-Brooch 18 kt., 9 round diamonds ap. 1.85 cts, signed Webb, ap. 36.6 dwts. CSee Sold Price
Sold2022Platinum and Diamond Filigree Pendant-BroochPlatinum 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 EstateSee Sold Price