Platinum Brooches & Pins
![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)
![Platinum & 18K ladies bowtie brooch, from local estate, fine condition, weighs 2.7 pennyweights,: Platinum & 18K ladies bowtie brooch, from local estate, fine condition, weighs 2.7 pennyweights, measures 1.7/8" across.](https://p1.liveauctioneers.com/808/333404/180285186_1_x.jpg?height=310&quality=70&version=1718672238)
![Antique Krementz Edwardian Platinum Top 14k Gold Diamond Etched Bar Pin Brooch: An antique solid 14k yellow gold and platinum pin brooch by Krementz, with 1 old european cut natural diamond (G - VS2 ; 0.06ctw). Measures 7.5x64.3mm and weighs a total of 4.42 grams.](https://p1.liveauctioneers.com/6100/333544/180157574_1_x.jpg?height=310&quality=70&version=1718402356)
![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)
![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)
![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)
![GIA Certified Natural Diamond Vintage Deco Pin Brooch Platinum 12418: GIA Certified Natural Diamond Vintage Deco Pin Brooch Platinum 12418 $12,000.00 PRODUCT DESCRIPTION GIA Certified Natural Diamond Pin. 1.20ct Round J-color I-1 clarity. All other side round diamonds:](https://p1.liveauctioneers.com/5584/333294/179930587_1_x.jpg?height=310&quality=70&version=1718745967)
![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)
![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)
![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)
![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)
![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)
![Tiffany & Co Platinum & Diamond Pin Brooch SEAGULL 1.40ct Large Size 2?? $12,000: Condition: Pre-owned: An item that has been used or worn previously. See the seller’s listing for full details and description of any imperfections. ,Main Stone Creation: Natural,Signed: Yes,Cut Gra](https://p1.liveauctioneers.com/3721/333196/180216345_1_x.jpg?height=310&quality=70&version=1718532817)
![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)
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 […]