Vintage 1950's Blue Sapphire Diamond Platinum Brooch Pin, .30 CTW, 4.96 GrChairish Auctions4.5(10.3k)$380
ART DECO 14K GOLD SAPPHIRES AND DIAMOND FILIGREE BAR BROOCHThomaston Place Auction Galleries4.4(427)$300Feb 22, 2026
Antique Art Deco Old European Cut Diamond and Sapphire Pin Brooch in 14k White and Yellow GoldEric's Estate & Jewelry4.6(528)$7001767 Lots Away
Antique Art Deco Old European Cut Diamond and Sapphire Pin Brooch in 14k White and Yellow GoldEric's Estate & Jewelry4.6(528)$70023 hrs Left
ART DECO PLATINUM DIAMOND AND SAPPHIRE BAR BROOCHThomaston Place Auction Galleries4.4(427)$500Feb 22, 2026
SoldLaCloche Frères Paris Art Deco Platinum PinLaCloche Frères Paris Art Deco Platinum Pin Weighing 10.9 grams Set with 48 Rose-cut Diamonds weighing app. 1.10 Ct. With a carved Lapis Lazuli at top 4.25 inches in lengthSee Sold Price
SoldArt Deco Jabot Platinum PinAn Art Deco jabot pin in platinum weighing 4.0 grams, the pin is set with two round diamonds weighing approximately 0.11ct each of "SI1-2" clarity and "G" colour, twelve caliber cut paste sapphires, aSee Sold Price
SoldArt Deco Platinum Diamond Pin BroochMETAL: platinum. GEMSTONES: diamonds-approx. 0.90 -1.00ctw. MEASUREMENTS: brooch 60 x 6.3mm at widest point. MARKED: Plat. WEIGHT: 5.4 grams.Gemstones have not been graded for color and clarity, and tSee Sold Price
SoldArt Deco Platinum Diamond Brooch PinArt Deco platinum brooch/pin decorated with mixed cut diamonds. Center stone- Old European cut diamond-approx. 0.79ct (VS2/I), two side stones-Old European cut diamonds-approx. 0.55ctw (SI1-SI2/I-J),See Sold Price
SoldART DECO PLATINUM & DIAMOND BAR PIN, 3.00CTWset with 22 European cut diamonds approx. 3.00 carats (in our opinion: K-L color, SI2-I1 clarity, however not guaranteed), 2 center diamonds each approx. 70pts, in tested filigreed platinum (pin stemSee Sold Price
SoldArt Deco Platinum Diamond Brooch PinMETAL: Platinum. GEMSTONES: Diamonds (one stone is missing) - approx. 3.00ctw. MEASUREMENTS: Brooch is 63mm x 29mm. TESTED: Plat. WEIGHT: 11.9 grams.Gemstones have not been graded for color and claritSee Sold Price
SoldArt Deco Platinum Diamond Brooch PinMetal : Platinum Designer : Not Signed Gemstone : Diamonds approx. 2.00ctw (center stone approx. 0.75ct ). Measurements : Brooch is 66mm x 40mm. Marked: : Tested plat. Weight:See Sold Price
SoldArt Deco Platinum Diamond Brooch PinMETAL: Platinum. MEASUREMENTS: Brooch is 35mm x 17mm. GEMSTONES: Diamonds approx. 1.40ctw (center stone approx. 0.40-0.44ct). TESTED: Plat top. WEIGHT: 7.7 grams.Gemstones have not been graded for colSee Sold Price
SoldArt Deco Platinum Diamond Brooch PinBrooch measures 46mm x 22mm. Decorated with approx. 2.00ctw diamonds. Top tested plat. Weight - 10.7 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancSee Sold Price
SoldArt Deco Platinum Diamond Brooch PinMETAL: Platinum. GEMSTONES: old mine and rose cut diamonds approx. 263 stones., center stone is approx. 0.70ct. MEASUREMENTS: Brooch is 57mm x 40mm. TESTED: Platinum. WEIGHT: 18 grams.Gemstones have nSee Sold Price
SoldArt Deco Platinum Diamond Stick PinArt Deco Platinum Diamond Stick Pin, Period antique lapel pin; platinum set with ten European cut diamonds, bead set and four square cut sapphires, the center with a European cut round cut diamond, apSee Sold Price
SoldArt Deco Platinum Diamond & Pearl PinArt Deco Platinum Diamond & Pearl Pin 4.2dwt; 18 Diamonds weighing 0.60cts, 4 Pearls 3.50mm; 2'' x 3/8'' x 3/8''See Sold Price
SoldAntique 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
SoldANTIQUE ART DECO PERIOD PLATINUM & DIAMOND PINApprox 3.1 dwt. 1 1/8" diameter Condition: GoodSee Sold Price
SoldArt Deco Platinum Diamond Brooch PinMETAL: Platinum. GEMSTONES: Mixed old mine and rose cut diamonds. MEASUREMENTS: Brooch is 32mm x 21mm. TESTED: Plat. WEIGHT: 6.5 grams.Gemstones have not been graded for color and clarity, and testedSee Sold Price
SoldArt Deco pin platinum 720/000Art Deco pin platinum 720/000 unstamped, tested, with 5 old cut diamonds, total 0,23 ct l.tonedTW/SI and 4 trapezoid faceted sapphires 2 x 1,7 mm, l. 46 mm, 4,5 gSee Sold Price
SoldArt Deco Platinum and Diamond PinDESCRIPTION: Art Deco pin comprised of platinum setting featuring an openwork filigree frame, centered by a series of diamonds. Total Weight: 4.8 grams (3.1 dwt).CIRCA: 1920s-1930sORIGIN: USADIMENSIONSee Sold Price
SoldArt Deco platinum diamond bar pinArt Deco platinum diamond bar pin, 2 1/2" long, center diamond measuring approximately 0.20 carats, ten smaller diamonds in body, stamped Platinum, weight 7.2 grams/4.6 dwtSee Sold Price
SoldArt Deco Platinum Diamond Stick PinArt Deco stick pin, with platinum and diamond top, with gold stem. Top measures 14.5 x 7mm, with approx. 0.24ctw in diamonds. Length of the pin - 65mm. Weight - 2.1 grams.See Sold Price
SoldArt Deco Platinum and Gold PinsArt Deco circa 1915 Including: (1) Pin, 2.5" long. 14K yellow gold back with filigree platinum top. Set with (3) emerald cut sapphires, Total weight 3.5 grams troy. (1) Pin, 14K yellow gold back withSee Sold Price
SoldJEWELRY. Art Deco Cartier Jade, Diamond, Onyx, andSapphire Brooch or Bar Pin. Art Deco Cartier platinum bar pin or brooch comprised of a central onyx openwork frame with (2) sapphire cabochon accents, and (3) stacked bands of pave diamonds; flanked bSee Sold Price
SoldGERMAN PLATINIUM, ENAMEL AND GARNET HAIR PINAn exquisite vintage German Art Deco style platinum hair pin decorated with white enamel and set with a large round cut garnet in a bezel setting. Marked verso: Platinum Germany. Fine Fashionable JeweSee Sold Price
SoldArt Deco Platinum, Diamond & Emerald Brooch / PinArt Deco platinum, diamond, and fine emerald brooch / pin, composed of fifty-one mixed-cut diamonds including baguette and round brilliant-cut diamonds; approx: 5.50 ct tw., color: H-I, clarity: VS2 -See Sold Price
SoldArt Deco Platinum Sapphire and Diamond Pin, FrenchCrafted in platinum; centering a rectangular cut sapphire weighing approximately 2.50 carats; accented with 34 square- and rectangular-cut sapphires, weighing a total of approximately 2.80 carats; andSee Sold Price
