Sold2022Antique Platinum Diamond Edwardian PinAntique platinum diamond pin, the Edwardian pin is fashioned of 14K yellow gold and faced with platinum. The center of the pin is decorated with intricate organic cutwork, outlined in delicate milgraiSee Sold Price
Sold2016Antique Platinum Diamond Brooch PinPlatinum brooch features approx. 1.20ctw in diamonds set in platinum. Brooch measures 31mm in diameter. Tested platinum. Brooch weighs 5.3 grams. Gemstones have not been graded for color and clarity ,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
Sold2024Jewelry. Antique Platinum Emerald & Diamond bar pin.Jewelry. Antique Diamond & Emerald bar pin. 3" length, 13 grams, central emerald approx 5x7 mm; 2 round diamonds on each side approx 4mm each; surrounded by 10 other round diamonds; flanked by two squSee Sold Price
Sold2018AN ANTIQUE PLATINUM AND DIAMOND BAR PIN, 2.30 CTTWThe filigree design with three diamonds estimated at approximately .50 carats each with eight .10 carat accent diamonds, estimated 2.30 CTTW, unmarked, tests for platinum. Measures .75 x 2.75 inches,See 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
Sold2022Antique 18kt White Gold Platinum Top Pin With DiamondsAntique 18kt White Gold Platinum Top Pin With Diamonds Measuring approx. (1.65" x 0.95") adorned with old mine cut diamonds - several missing - approx. 0.78ct tdw, stamped and tested (10.8 grams tw).See Sold Price
Sold2022Antique Platinum Diamond Jabot Brooch PinMETAL: Platinum. MEASUREMENTS: Brooch is 3.5" long x 17mm wide. GEMSTONES: Diamonds approx. 69 stones total, combination of smaller rose and larger old mine mixed shaped stones. WEIGHT: 8.8 gramsSee Sold Price
Sold2024Jewelry. Antique Platinum Diamond bow bar pin. 7.54 grams 1 3.4" length. two round diamonds in theJewelry. Antique Platinum Diamond bow bar pin. 7.54 grams 1 3.4" length. two round diamonds in the center, approx 3mm each, several diamonds 2mm each & smaller.See 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
Sold2024Antique 18k Gold Platinum Diamond Jabot PinMETAL: 18k Gold/ Platinum. MEASUREMENTS: Pin is 38mm x 8mm. GEMSTONES: Rose cut diamonds approx. 15 stones. TESTED: 18k/ Plat. WEIGHT: 1.4 grams.Gemstones have not been graded for color and clarity, aSee Sold Price
Sold2022Antique Platinum Mine Cut Diamond Bar Pin BroochCa. first quarter 20thC. Excellent original condition with three 3 1/2mm center full cut diamonds, set among forty-six 1mm mine cut diamonds placed diagonally within the checkered interior. The borderSee 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
Sold2022Antique art deco platinum diamond bar pinVintage from the 1920s Length: 2.5 Inches Materials: Platinum Style: Art deco Recycled Description Solid platinum genuine diamond bar pen measuring two. 5 inches with magnificent hand done open scrollSee Sold Price
Sold2018Ladies 1940's Platinum Diamond Ruby Pin, 1.84ctwItem: Ladies Antique 1940's Platinum & Diamond & Ruby Pin Brand: Unbranded Metal Purity: platinum Gemstones: Diamonds, Rubies Carat Weights: 1.20 ct diamonds TW, .64 ct rubies TW Size: 2 3/4" x 1" MouSee Sold Price
Sold2024ART DECO PLATINUM AND DIAMOND BROOCH, 7.5gAn antique platinum pin brooch, featuring round, baguette, and trillion cut diamonds, testing platinum, with safety chain. L. 4cmSee Sold Price
Sold2024Antique French Platinum Gold Turquoise Diamond Brooch PinMETAL: Platinum/18k Gold. GEMSTONES: Diamonds approx. 1.20ctw. Turquoise - 10mm x 8.5mm. MEASUREMENTS: Brooch is 37mm x 25mm. MARKED: French Eagle's head Hallmark. Tested - Plat. WEIGHT: 10.7 gramSee 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
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
Sold2023Antique Diamond Platinum Sapphire Bar PinEarly platinum 7 diamond, 8 rectangular caliper-cut sapphire Art-Deco filigree bar pin. (4.2 dwt.) Vintage J.E. Caldwell leather box included but not original to pin.See Sold Price
Sold2022Antique Platinum Diamond Sapphire Fish Brooch PinMETAL: Platinum. MEASUREMENTS: Brooch is 44mm x 17mm. GEMSTONES: Sapphire, Emerald, Diamonds approx. 0.70ctw. MARKED: 8990P. WEIGHT: 5.1 grams.Gemstones have not been graded for color and clarity ,andSee 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
Sold2022Antique Platinum Filigree Art Deco 2tcw Diamond Bar PinThis is an antique platinum filigree Art Deco bar pin studded with Old European cut diamonds. The diamonds are SI clarity and HI-JK color. The pin is 2 3/4" long and it weighs 7.4g total. The diamondsSee Sold Price
Sold2024Antique 18k Gold Platinum Diamond Arrow Jabot PinMETAL: 18k Gold/ Platinum. MEASUREMENTS: Pin is 50mm x 10mm. GEMSTONES: Rose cut diamonds approx. 30 stones. TESTED: 18k/ Plat. WEIGHT: 2.2 grams.Gemstones have not been graded for color and clarity,See Sold Price
3 days LeftMiami Auctions & Appraisals LLC Antique Cushion Amethyst Diamond Platinum Brooch PinUS$3,300
3 days LeftMiami Auctions & Appraisals LLC Antique Art Deco Diamond Sapphire Platinum Pin BroochUS$5,100
3 days LeftMiami Auctions & Appraisals LLC ANTIQUE 8.50CTS DIAMOND FLOWER PLATINUM BROOCH PINUS$7,500
Oct 20Miami Auctions & Appraisals LLC Antique Deco Sailfish Aquamarine Diamond Platinum Brooch PinUS$10,250
3 days LeftFederal Assets AuctioneersAntique Art Deco Platinum 4.04 ctw Old European Diamond Filigree Bar Pin BroochUS$1
3 hrs LeftFederal Assets AuctioneersAntique Art Deco Platinum European Marquise Diamond Ribbon Bow Wreath Brooch PinUS$1
Oct 01Platinum Auction GroupAntique Black Starr & Frost-Gorham Diamond Platinum Deco Brooch PinUS$3,400
3 days LeftMiami Auctions & Appraisals LLC ANTIQUE BLACK STARR & FROST-GORHAM DIAMOND PLATINUM DECO BROOCH PINUS$12,750
Oct 20Miami Auctions & Appraisals LLC ANTIQUE BLACK STARR & FROST-GORHAM DIAMOND PLATINUM DECO BROOCH PINUS$12,750
Oct 23Miami Auction GalleryANTIQUE BLACK STARR & FROST-GORHAM DIAMOND PLATINUM DECO BROOCH PINUS$12,000
3 hrs LeftFederal Assets AuctioneersAntique Art Deco Platinum Old Euro & Mine Cut Diamond Open Geometric Brooch PinUS$1
3 days LeftMiami Auctions & Appraisals LLC ANTIQUE ART DECO DIAMOND PLATINUM FILIGREE BAR BROOCH PINUS$11,250
Oct 20Miami Auctions & Appraisals LLC ANTIQUE ART DECO DIAMOND PLATINUM FILIGREE BAR BROOCH PINUS$11,250
3 days LeftMiami Auctions & Appraisals LLC Antique Deco 6.55cts Old European Diamond Platinum Filigree Brooch PinUS$14,000
Oct 20Miami Auctions & Appraisals LLC Antique Deco 6.55cts Old European Diamond Platinum Filigree Brooch PinUS$14,000
3 days LeftMiami Auctions & Appraisals LLC ANTIQUE ART DECO DIAMOND WHIMSICAL PLATINUM DOUBLE BROOCH PINUS$26,250
4 days LeftFederal Assets AuctioneersAntique Art Deco Black Starr Frost Platinum GIA Natural Pearl & Diamond Bar PinUS$1
5 days LeftFederal Assets AuctioneersAntique Belle Epoque Platinum Multi Color Pearl Diamond Wreath Circle Pin BroochUS$1
Oct 23Miami Auction GalleryAntique Deco 6.55cts Old European Diamond Platinum Filigree Brooch PinUS$14,000
1 day LeftSeized Assets AuctioneersAntique Art Deco Platinum 2.25 ctw Diamond Emerald Sapphire Floral Pin BroochUS$1