![Art Deco Platinum 14.50 Ct. Diamond Heart Brooch: Art Deco Platinum 14.50 Ct. Diamond Heart BroochWeighing 21.7 gramsSet with 10 Diamonds weighing app. 7.50 Ct.35 Diamonds weighing app 4.00 Ct.And 14 Diamonds weighing app. 3.00 Ct.F-H Color, VVS-VS C](https://p1.liveauctioneers.com/1692/331206/178647433_1_x.jpg?height=310&quality=70&version=1716648721)
Platinum Brooches & Pins
![Art Deco Platinum 14.50 Ct. Diamond Heart Brooch: Art Deco Platinum 14.50 Ct. Diamond Heart BroochWeighing 21.7 gramsSet with 10 Diamonds weighing app. 7.50 Ct.35 Diamonds weighing app 4.00 Ct.And 14 Diamonds weighing app. 3.00 Ct.F-H Color, VVS-VS C](https://p1.liveauctioneers.com/1692/331206/178647433_1_x.jpg?height=310&quality=70&version=1716648721)
![Chaumet Retro Brooch 18k Gold Diamond Pin Estate Jewelry: About the Item A French chic retro diamond brooch by Chaumet Paris made of 18 karat gold and platinum. During the Retro jewelry era, scrolls became one of the most popular design motifs. In this brooc](https://p1.liveauctioneers.com/5584/333401/180019473_1_x.jpg?height=310&quality=70&version=1718743985)
![ART-DECO SAPPHIRE AND DIAMOND BROOCH: ART-DECO SAPPHIRE AND DIAMOND BROOCH,5,7 grams, testing platinum.Bright and lively diamonds, totalling approx. 1.10 ct.Vibrant blue sapphires.L. 5.6 cm.](https://p1.liveauctioneers.com/7243/333894/180415997_1_x.jpg?height=310&quality=70&version=1718915230)
![AN ANTIQUE SAPPHIRE, DIAMOND AND PEARL BAR BROOCH in yellow gold and platinum, set with a round c...: AN ANTIQUE SAPPHIRE, DIAMOND AND PEARL BAR BROOCH in yellow gold and platinum, set with a round cut sapphire accented by old and rose cut diamonds, terminating at each end with a pearl, no assay marks](https://p1.liveauctioneers.com/6430/333787/180328574_1_x.jpg?height=310&quality=70&version=1718746274)
![A VINTAGE FRENCH DIAMOND BIRD DOUBLE CLIP BROOCH in platinum and 18ct white gold, designed as a p...: A VINTAGE FRENCH DIAMOND BIRD DOUBLE CLIP BROOCH in platinum and 18ct white gold, designed as a pair of birds with flowers, set throughout with round brilliant and single cut diamonds, one diamond def](https://p1.liveauctioneers.com/6430/333787/180328589_1_x.jpg?height=310&quality=70&version=1718746274)
![Antique Art Deco Diamond Pearl Platinum Double Clip Brooch Pin: Measuring 21 x 57mm, the brooch is adorned with a variety of emerlad, marquise and round faceted diamonds with 6 cultured Pearls placed strategically. Diamonds weigh appx. 2.75 carats and are of G-H c](https://p1.liveauctioneers.com/2211/332393/179263836_1_x.jpg?height=310&quality=70&version=1717524154)
![ELWOOD VAN CLIEF Vintage Diamond Platinum Brooch Pin 17.50 Carats: Weighing approx. 28.4 grams and measuring 60mm x 32mm. This brooch is covered with (36) marquise diamonds, (30) baguette diamonds, and (32) round-faceted diamonds weighing cumulatively 17.50cts, (grad](https://p1.liveauctioneers.com/2211/332393/179264040_1_x.jpg?height=310&quality=70&version=1717524154)
![Vintage 21.90cts Platinum Mixed-cut Natural Diamond tassel Brooch Pin: This beautiful Vintage 1960s diamond brooch pin is crafted in solid platinum. Displaying a delicate swirl design with exquisite details and exceptional artistry, this unique brooch pin is embellished](https://p1.liveauctioneers.com/2211/332393/179264058_1_x.jpg?height=310&quality=70&version=1717524154)
![Antique Art Deco Platinum 7.24 ctw Diamond Large Sapphire Filigree Brooch Pin: An antique. art deco solid platinum bar pin brooch, with 195 old european/rose/single cut natural diamonds (G-L - VS1-SI1; 7.24ctw), and 2 custom bullet cut synthetic sapphires, with straight baguette](https://p1.liveauctioneers.com/6100/334158/180562723_1_x.jpg?height=310&quality=70&version=1718990377)
![PLATINUM 18KT GOLD AND GREEN SPINEL GEM STONE: A minimalist brooch made of platinum and 18K yellow gold, set with a round green gem stone, most likely spinel. Hallmarked, PLT 950. Unique Fine Jewelry, Luxurious Gifts And Accessories For Women. Tot](https://p1.liveauctioneers.com/6975/334116/180528489_1_x.jpg?height=310&quality=70&version=1718976731)
![Platinum & 14K Gold, Sapphire Brooch and 14K Gold Bust Brooch: 1st item: Ladies platinum and 14K yellow gold brooch featuring a round natural sapphire. The brooch is marked "14K" and XRF tests 14K gold on the back with 90% platinum on the face. The broo](https://p1.liveauctioneers.com/525/332539/179372107_1_x.jpg?height=310&quality=70&version=1717698500)
![Estate Designer Mark Patterson Sapphire Platinum Pendant/Brooch: Estate Designer Mark Patterson Sapphire Platinum Pendant/Brooch. Ê Ê Ê Ê Estate Mark Patterson Pave Brooch/Pendant, Round Cut Diamond 0.45ct G-H VS2-SI1, Round Sapphire 4.80 cttw,](https://p1.liveauctioneers.com/6970/334101/180524946_1_x.jpg?height=310&quality=70&version=1719059741)
![Estate Tiffany & Company 4.00 Cttw Old European Cut Diamond Brooch (Semi Mount) 2.50 French Cut: Estate Tiffany & Company 4.00 Cttw Old European Cut Diamond Brooch (Semi Mount) 2.50 French Cut Emeralds Platinum & 18K Yellow Gold.Ê Ê Ê Ê Estate Tiffany & Co Brooch, Old European](https://p1.liveauctioneers.com/6970/334101/180524559_1_x.jpg?height=310&quality=70&version=1719059741)
![Platinum over yellow gold edwardian dimond, pearl: Brooch is composed of old min-cut and rose-cut diamonds; diamonds are SI in clarity and I-g COLLER, total diamond weight app. 2.00 CTS. Pearls 4mm,5mm Circa 1880 Diamond andPearl and Gold 9.2 grams 11](https://p1.liveauctioneers.com/5870/332992/179756654_1_x.jpg?height=310&quality=70&version=1718238316)
![One Platinum, Diamond and Synthetic Sapphire Brooch: GUILD laboratories' certificates are as accurate as GIA AND AGL certificates, and Sumer collection stands a hundred percent behind Guild laboratory's certifications.](https://p1.liveauctioneers.com/5870/332992/179756726_1_x.jpg?height=310&quality=70&version=1718238316)
![Vintage Brooch 18k Gold Diamond Flower Pin Estate Jewelry: About the Item An amazing vintage brooch, made of 18 karat yellow gold and platinum, featuring diamonds. The brooch is designed as a stylized bouquet of flowers or a fire torch. It comprises yellow go](https://p1.liveauctioneers.com/5584/333401/180019515_1_x.jpg?height=310&quality=70&version=1718743985)
![Authentic! Tiffany & Co Schlumberger 18k Yellow Gold Platinum Diamond Pin Brooch: Authentic! Tiffany & Co Schlumberger 18k Yellow Gold Platinum Diamond Pin Brooch Authentic! Tiffany & Co Schlumberger 18k Yellow Gold Platinum Diamond Pin Brooch Product Description About This Piece:](https://p1.liveauctioneers.com/5584/333405/180019898_1_x.jpg?height=310&quality=70&version=1718745967)
![Henry Dunay Sabi Yellow Gold Platinum Earrings Brooch Set: About the Item An 18k yellow gold and platinum set of earrings and a brooch from Sabi collection by Henry Dunay. The earrings are knot shape with clip-on closure. The brooch has beautiful curves and i](https://p1.liveauctioneers.com/5584/333401/180019639_1_x.jpg?height=310&quality=70&version=1718743985)
![Art Deco Platinum Emerald & Diamond Brooch: Art Deco Platinum Emerald & Diamond Brooch Weighing 46.3 grams Set with an app. 2.50 Ct. Emerald in Center Along with 2 Diamonds weighing app. 2.70 Ct. F-G Color, VVS-VS Clarity And 234 Diamonds weigh](https://p1.liveauctioneers.com/6970/334101/180524812_1_x.jpg?height=310&quality=70&version=1719059741)
![Henry Dunay Sabi Yellow Gold Platinum Earrings Brooch Set: Henry Dunay Sabi Yellow Gold Platinum Earrings Brooch Set. An 18k yellow gold and platinum set of earrings and a brooch from Sabi collection by Henry Dunay.. The earrings are knot shape with clip-on c](https://p1.liveauctioneers.com/3780/334177/180574830_1_x.jpg?height=310&quality=70&version=1718992884)
![Edwardian. platinum yellow gold diamond brooch: GUILD laboratories' certificates are as accurate as GIA AND AGL certificates, and Sumer collection stands a hundred percent behind Guild laboratory's certifications.](https://p1.liveauctioneers.com/5870/332992/179756664_1_x.jpg?height=310&quality=70&version=1718238316)
News about Platinum Brooches & Pins
![Harry Winston platinum and diamond ring rocked Doyle Fine Jewelry auction](https://www.liveauctioneers.com/news/wp-content/uploads/2023/04/Screenshot-2023-04-28-at-4.23.26-PM-1.png)
Harry Winston platinum and diamond ring rocked Doyle Fine Jewelry auction
NEW YORK – Jewelry sales at Doyle continue to surpass expectations at all levels of value. Auctions of Important Jewelry on April 27 and Fine Jewelry & Luxury Handbags on April 26 saw determined bidders from across the country and around the world drive exceptional prices throughout both sales, sending the week’s total past $6 million.
![Platinum sparkler, Remington bronze command attention at Abell Auction, May 22](https://www.liveauctioneers.com/news/wp-content/uploads/2022/05/Screen-Shot-2022-05-14-at-5.12.20-PM.png)
Platinum sparkler, Remington bronze command attention at Abell Auction, May 22
LOS ANGELES – Abell Auction Co. will present a fine art, antiques, 20th-century design and fine jewelry auction on Sunday, May 22, starting at 9 am Pacific time. Featuring property from prominent California estates, the online sale will be highlighted by an original Frederic Remington bronze Rattlesnake sculpture, estimated at $100,000-$150,000, and a collection of […]
![Picassos, Tiffany table, Agassiz platinum watch at Coker’s, June 18](https://www.liveauctioneers.com/news/wp-content/uploads/2011/06/2011_0608_9314248_lead.jpg)
Picassos, Tiffany table, Agassiz platinum watch at Coker’s, June 18
NEW MARKET, Tenn. – On Sat., June 18, commencing at 10 a.m. Eastern time, John W. Coker, Ltd., will conduct an eclectic Summer Estate Auction featuring exquisite timepieces and fine jewelry; paintings and decorative art; rugs and other quality antiques. Internet live bidding will be provided by LiveAuctioneers.com. From a Philadelphia art pottery collector’s estate […]
![Jasper52 presents Treasures of Time: Estate Designer Jewelry May 28](https://www.liveauctioneers.com/news/wp-content/uploads/2024/05/178015692_1_x.jpg)
Jasper52 presents Treasures of Time: Estate Designer Jewelry May 28
NEW YORK – On Tuesday, May 28, starting at 7 pm Eastern time, Jasper52 will conduct a sale titled Treasures of Time: Estate Designer Jewelry, consisting of exactly 221 lots. Absentee and Internet live bidding will be available through LiveAuctioneers. Highlights include an 18K gold and diamond bracelet by the Italian jewelry firm of Roberto […]