![3 Antique Platinum & 14K Gold Stickpins: Comprising a platinum and 14K peridot and 2.5 mm diamond, a pin with Old European cut diamonds, and a gold filled antique Victorian pin with Morpho butterfly wing. Combined weight of the gold and plat](https://p1.liveauctioneers.com/7247/333489/180080174_1_x.jpg?height=310&quality=70&version=1718412249)
Platinum Brooches & Pins
![3 Antique Platinum & 14K Gold Stickpins: Comprising a platinum and 14K peridot and 2.5 mm diamond, a pin with Old European cut diamonds, and a gold filled antique Victorian pin with Morpho butterfly wing. Combined weight of the gold and plat](https://p1.liveauctioneers.com/7247/333489/180080174_1_x.jpg?height=310&quality=70&version=1718412249)
![Art Deco 18kt Gold and Platinum Brooch with CTW in Emeralds and Diamonds: Art Deco 18k yellow Gold with Platinum, featuring three Emerald cut Emeralds weighing Approx. 3.00 carats. Along with Old mine Diamonds weighing Approx. 4.00 Carats. H-J color, VS-SI clarity (one has](https://p1.liveauctioneers.com/7877/333606/180214210_1_x.jpg?height=310&quality=70&version=1718513102)
![AS TIME BROOCH AND PENDANT LAPIS LAZULI DIAMOND CASTLE 18K: As Time Brooch and Pendant Lapis Lazuli Diamond Castle 18K Brand: As Time by ISHIKAWA NOBUKO Type: Pendant Material: 18K/750/Yellow Gold, 900/Platinum Color: None Size: None Accessories: None](https://p1.liveauctioneers.com/6177/332290/179215340_1_x.jpg?height=310&quality=70&version=1717432081)
![Ladies Art Deco Platinum, Diamond & Colombian Emerald Brooch: Ladies Art Deco Platinum, Diamond & Colombian Emerald Pin. Center Old Mine Cut Diamond: 1.80cts. Diamond Clarity: VS Color: K to L Total Daimond Weight Aprox: 3.5cts 6 colombian Emeralds Aprox: 0.75ct](https://p1.liveauctioneers.com/5870/332992/179756376_1_x.jpg?height=310&quality=70&version=1718238316)
![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/989/334035/180502512_1_x.jpg?height=310&quality=70&version=1718915780)
![1940s Vintage 1.50 Carat Diamond: 1940s Vintage 1.50 Carat Diamond and Platinum Ladies Cocktail Fob Watch Case Material: Platinum Stone: Diamond Stone Cut: Round Cut Weight: 14.43 g Movement: Manual Wind Case Diions: Width: 0.85 i](https://p1.liveauctioneers.com/6732/331713/179665743_1_x.jpg?height=310&quality=70&version=1717912306)
![Three Antique 10K & 14K Gold Stickpins: Comprising a 10K flower with rose cut diamond, an Art Deco pin with dogtooth pearl and old mine cut diamond, and an Art Deco 14K & Platinum pearl and diamond pin. 10K 0.4 dwt, 14K 0.8 dwt and platinum](https://p1.liveauctioneers.com/7247/333489/180080186_1_x.jpg?height=310&quality=70&version=1718412249)
![Art Deco Ladies Platinum & Diamond Pin.: Art Deco Ladies Platinum & Diamond Pin. Total Old Mine Cut Diamond: 4cts Daimond Clarity: VS Color: G to H Total Weight: 10.3grams 2" Long. (No. #BR642)](https://p1.liveauctioneers.com/5870/332992/179756343_1_x.jpg?height=310&quality=70&version=1718238316)
![Late Deco French Platinum & Diamond Double Clip Brooch: GUILD laboratories' certificates are as accurate as GIA AND AGL certificates, and Sumer collection stands a hundred percent behind Guild laboratory's certifications. Hall Marks on pin](https://p1.liveauctioneers.com/5870/332992/179756593_1_x.jpg?height=310&quality=70&version=1718238316)
![An Art Deco large-scale platinum brooch set with diamonds.: An impressive Art Deco large-scale platinum brooch (acid tested), adorned with geometric patterns and set with an old cut diamond weighing approximately 0.35 carats. Total diamond weight approximately](https://p1.liveauctioneers.com/6253/332449/179301283_1_x.jpg?height=310&quality=70&version=1717577449)
![Antique Art Deco 5.50ct Diamond Platinum Filigree Geometric Open Brooch Pin: Genuine Round Cut Diamond bezel-set & prong set, total weight is 5.50 carats in total, G-H color, and VS1 clarity. The complete piece measures approximately 2.25 x 1 and is secured with a bar pin.](https://p1.liveauctioneers.com/2211/332393/179263825_1_x.jpg?height=310&quality=70&version=1717524154)
![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)
![Tiffany & Co. 2.75 Carat Round Brilliant F VS1 Diamond Pearl Platinum Brooch: Designer: Tiffany & Co Title: Tiffany & Co 2.75 Carat Round Brilliant F VS1 Diamond Platinum Brooch Metal: Platinum Gemstone 1: 2.75 Carat Diamond Number of Stones: 96 Color: F Clarity: VS1 Shape: Rou](https://p1.liveauctioneers.com/3780/329167/177974208_1_x.jpg?height=310&quality=70&version=1715878703)
![Suzanne Belperron Dents de Loup Clip Brooches Diamond Gold Platinum: About the Item A pair of magnificent double clips designed by Suzanne Belperron and manufactured by company B. Herz in Paris between 1932 and 1940. The piece comes with an authentication certificate f](https://p1.liveauctioneers.com/5584/333401/180019413_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)
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 […]