Sold2022Antique Opal Cameo Diamond Platinum BroochAntique black opal cameo set atop onyx set in platinum and 18kt white gold with diamonds. Width 1 3/8;; total weight 7.5 grams Condition: Two tight fissures in onyx at 12 and 6, perhaps intentionalSee Sold Price
Sold2021JADE DIAMOND PLATINUM & 18kt WHITE GOLD BROOCHChinese jade platinum and 18kt white gold brooch with diamonds. Marked PLAT 18ct. Brooch measures 46mm length. Jade measures 28mm x 17mm. Total weight 4.5dwt.See Sold Price
Sold2022Two-Tone Gold and Platinum Diamond Peridot Pin18kt Yellow Gold and Platinum 0.35ctw Diamond & 0.75ctw Peridot Two Doves Brooch/Pin - 14 gramsSee Sold Price
Sold2019Antique Platinum 18k Gold Diamond Brooch PinMETAL: Platinum/ 18k Gold. MEASUREMENTS: Brooch is 69mm x 21mm. Chain is 3.75" long (with safety pin). TESTED: Plat top/ 18k gold. WEIGHT: 13.9 grams.Gemstones have not been graded for color andSee Sold Price
Sold2021ESTATE 18KT GOLD, PLATINUM & DIAMOND BROOCHEstate 18kt yellow gold (tested) brooch, thirty-eight square-cut, channel-set red stones (synthetic), twenty-seven diamonds in platinum-topped setting, two bezel-set diamond and pearl drops, approx 1See Sold Price
Sold2020Antique Platinum 14K Gold Diamond Brooch PinMETAL: Platinum and 14k Gold. GEMSTONES: Old mine cut diamonds approx. 0.84ctw (center diamond approx. 0.62ct). MEASUREMENTS: Brooch is 38mm x 11mm wide. TESTED: Plat, 18k. WEIGHT: 3.7 grams.GemstonesSee 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
Sold2020Antique Platinum 18K Gold Diamond Pin BroochMETAL: 18k Gold, Platinum. GEMSTONES: Center diamonds approx. 0.13ctw. Rose cut diamonds. MEASUREMENTS: Brooch/Pin is 70mm x 6mm. MARKED/TESTED: 750, Platinum. WEIGHT: 4.8 grams.Gemstones have not beeSee Sold Price
Sold2024Antique Diamond, Platinum & 14K Gold BroochA ladys diamond, platinum and medium karat (14k) yellow gold brooch. 64 x 6 millimeter bar brooch has a an open geometric scroll motif and is centered by one .15 carat Old European Cut diamond that isSee Sold Price
Sold2019Antique 18k Gold Platinum Diamond Bar Brooch PinMETAL: 18k Gold/ Platinum. MEASUREMENTS: Brooch is 58mm x 4.8mm. Comes with box. GEMSTONES: Old mine and rose cut diamonds approx.1.00-1.20ctw. TESTED: 18k/ Plat top. WEIGHT: 3.8 grams.Gemstones haveSee Sold Price
Sold2016PLATINUM, GOLD & DIAMOND CIRCLE ESTATE BROOCHLadies estate platinum,18kt gold and diamond brooch, two interlocked circles set with approx 2.00 cts total weight diamonds of varied size, 1.5"l, 1"w, 6.7 grams (inclusive of diamonds) Start Price: $See Sold Price
Sold202218kt White Gold, Platinum Top, Diamond Brooch18kt White Gold, Platinum Top, Diamond Brooch Measuring (1.25") in diameter containing European cut diamonds in a floral design (H-SI2) approx. 2.46ct tdw, electronically tested, unsigned piece (9.6 gSee Sold Price
Sold2023Antique Gold Platinum Demantoid Garnet Diamond Brooch PinMetal : Gold back/Platinum Top Designer : Not Signed Gemstone : Demantoid garnets, Diamonds Measurements : Pendant is 25mm x 25mm Marked: : Tested plat/gold Weight: 10.1 gramsSee Sold Price
Sold2023Antique Gold Platinum Miniature Portrait Diamond Brooch PendantMETAL: 18k Gold/ Platinum. MEASUREMENTS: Brooch is 35mm x 25mm. GEMSTONES: Diamonds. TESTED: 18k/ Plat. WEIGHT: 7.5 grams.Gemstones have not been graded for color and clarity ,and tested for clarity aSee Sold Price
Sold2017JEWELRY. Antique 18kt Gold, Ruby, Sapphire, andDiamond Brooch. Beautiful 18kt yellow gold brooch with central band of 3 diamonds flanked horizontally by graduated sapphire cabochons, and vertically flanked by ruby cabochons. Most probably AustrianSee Sold Price
Sold2023JEWELRY. Antique Platinum and Diamond Bar Pin.Antique platinum bar pin displaying (12) Old Mine cut diamonds. Diamonds average approx. 3.5mm x 2.5mm. With a 14kt yellow gold brooch backing. Total approx. weight of the brooch is 3.7 dwt (gross). FSee Sold Price
Sold2020Antique Platinum Diamond Pearl Horseshoe Brooch PinMETAL: Platinum. Stem is not gold. GEMSTONES: Diamonds approx. 0.10ctw. Pearls. MEASUREMENTS: Brooch is 48mm x 45mm. TESTED: Platinum. WEIGHT: 9.8 grams.Gemstones have not been graded for color and clSee Sold Price
Sold2023Antique 18k Gold Platinum Diamond Ruby Bar Brooch PinMETAL: 18k Gold. GEMSTONES: Two small rose cut diamonds. Ruby. Center gemstone is chipped. MEASUREMENTS: Brooch is 43mm x 5mm (missing a dangle element). TESTED: 18k, Plat. WEIGHT: 3.2 grams.GemstonesSee Sold Price
Sold2016JEWERLY. Two Art Deco Style Platinum, Diamond, and18kt Gold Brooches. Total approx. weight of two brooches is 8.1 dwt. From an extensive Brooklyn, NY collection. Dimensions: 1.625" x .375" and 1.25" diameter.See Sold Price
Sold2022TIFFANY AND CO 18K GOLD PLATINUM DIAMONDS BROOCHTiffany and Co 18K Gold and Platinum brooch. The brooch is made in the shape of a flower and encrusted with diamonds. Marked with standard Gold and Platinum hallmarks, Tiffany and Co copyright, on theSee Sold Price
Sold2022JEWELRY. Antique En Tremblant Diamond Bird Brooch.Antique Continental, most probably French, silver-topped 18kt gold brooch displaying an Old European cut diamond inlaid en tremblant bird set above a floral wreath inlaid with Old European cut diamondSee Sold Price
Sold2022JEWELRY. Antique Diamond Floral Form Brooch.Antique silver-topped 18kt yellow gold floral form brooch inlaid throughout with rose cut diamonds and a single prong-set Old Mine cut diamond. OMC diamond measures approx. 4.6mm x 4.3mm. Total approxSee Sold Price
Sold2022Antique Platinum Art Deco Filigree Diamond Brooch Pin PendantThis is an antique Art Deco bar brooch pin/pendant rendered in fine 14K white gold. The filigree brooch features 21 Old European cut diamonds of VS-SI clarity and HI color. It is 2 1/2" long and it weSee Sold Price
Sold2024Antique Tiffany & Co. Paris Platinum 18K Gold Diamond Pearl Circle Brooch Circa 1900s 3ctwTitle: Antique Tiffany & Co. Paris Platinum 18K Gold Diamond Pearl Circle Brooch Circa 1900s 3ctw Description:Antique Tiffany & Co. Paris Platinum 18K Gold Diamond Pearl Circle Brooch Circa 1900s 3ctSee Sold Price
May 06Heritage Auctions55200: Antique Natural Pearl, Diamond, Platinum-Topped$3,000
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3 days LeftSeized Assets AuctioneersAntique Victorian 14k Gold & Platinum GIA Old Sapphire Ruby Diamond Long Bar Pin$1
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5 days LeftSeized Assets AuctioneersAntique 18K Yellow Gold Pearl Diamond Florentine Finish Large Flower Brooch Pin$1
51 mins LeftElmwood'sAN ANTIQUE DIAMOND BROOCH in rose gold, set with three old cut diamonds, accented by rose cut£350