0.90CT DIAMOND & PEARL 18K WHITE GOLD VINTAGE EDWARDIAN PIN BROOCHModern Jewelry4.5(204)$6,300Mar 03, 2026
Platinum and 18K Gold Art Deco Diamond Clip Brooch with 7 Carats Old Mine StonesBidhaus4.2(836)$1007 days Left
Art Deco Platinum Brooch with 8.60 Ct Diamonds I Color SI1 ClarityDiamond Depot4.3(10)$7,9001 day Left
Ring Platinum, Art Deco Platinum Ring with 1.29 Carats of Diamonds Including a 0.60-Carat CenterEastern European Art Gallery Inc$5004 days Left
SoldPlatinum Diamond Jet PinPlatinum diamond and jet brooch. The former watch case features an oval piece of jet in place of the watch face, with a rose cut diamond at the center. The surrounding pin is decorated with intricateSee Sold Price
SoldEarly 20th Century Platinum & Diamond Pin11.4 grams total weight. With old European and mine cut diamonds, 15 total. 3.25 ct. total, largest diamond .38cts. VS - SI clarity and I-J-K color. Small chip on central diamonds. Top of pin platinumSee Sold Price
SoldPLATINUM & DIAMOND PIN BY BLACK, STARR & FROSTin classic Edwardian design, set with 30 round diamonds approx. 1.00 carats, tests platinum, stamped 'BS&F', 1.4in., 6.4gms.See Sold Price
SoldDECO PLATINUM & DIAMOND PIN PENDANT, 1.65CTWset with 63 round diamonds approx. 1.65 carats (in our opinion: G-H color, VSI clarity, however not guaranteed), one diamond missing, tests platinum, 15x37mm, 5.8gms., Opening Bid $500See 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
SoldANTIQUE ART DECO PERIOD PLATINUM & DIAMOND PINApprox 3.1 dwt. 1 1/8" diameter Condition: GoodSee Sold Price
SoldMid Century 1950's Platinum 4.00ctw Diamond Brooch PinMid Century Platinum Diamond Pin. Adorned with round and baguette cut diamonds - approx.4.00ctw . Measurements - Pin is 34mm in diameter. Tested - Platinum. Weight - 14.1 grams.See Sold Price
SoldAntique 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
SoldVINTAGE PLATINUM & DIAMOND SWIRL PIN.A vintage, platinum (tested) swirl pin set with approx. 5.0 ct. tw. round brilliant, baguette and single cut, natural diamonds of F-G-H color and VS clarity, 2 1/4 inches long, 20 grams. Tested as natSee 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
SoldCARTIER PLATINUM & DIAMOND BAR PIN, 1.80CTWSet with 12 square cut diamonds approx. 1.80 carats, stamped 11170 Cartier, tests platinum, length 1.6in., 6.8gms.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
SoldLadies 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
SoldART DECO RAYMOND YARD PLATINUM DIAMOND BAR PIN.An Art Deco, signed Yard Inc., Raymond Yard, platinum bar pin set with approx. 2.0 ct. tw., Old European cut, natural diamonds of F-G color and VS clarity, 4 mm wide, 2 1/4 inches long, 6.1 grams. TesSee Sold Price
SoldArt Deco Filigree Platinum Diamond Brooch PinMETAL: Platinum. GEMSTONES: Old mine cut diamonds total approx. 1.55ctw. Center diamond approx. 0.65ct. MEASUREMENTS: Brooch is 51mm x 19mm. TESTED: Plat. WEIGHT: 10.1 grams.Gemstones have not been grSee Sold Price
SoldPlatinum Diamond Convertible PinPlatinum. Missing one melee diamond. Tested. Weight: 19.89g gross. Contains Pear, round brilliant and baguette cut diamonds of an estimated 9.23ct total, average SI clarity. 52 mm. Offered without resSee Sold Price
SoldPLATINUM & DIAMOND CIRCLE PIN, 3.05CTWset with a marquise dangle approx. 0.45 carats, and 33 round diamonds approx. 2.60 carats, total diamond weight 3.05 carats (in our opinion: F-G color, SI1-2 clarity, however not guaranteed), pin testSee Sold Price
SoldA Lady's Russian Platinum Ruby & Diamond PinA Lady's Russian Platinum Ruby & Diamond Pin / Brooch / Pendant. Containing four (4) rubies set in a platinum mounting containing 2.50 carats of diamonds. Clarity SI clarity H-I color. approx weight 1See Sold Price
SoldTwo-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
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
SoldPlatinum Diamond Heart PinPlatinum Diamond Heart Pin (tested note: the hinge tested 14K) 26 bezel set diamonds. 2.6cts est.; size 1" x 1.125"; weight 4.06 dwts.See Sold Price
SoldTiffany & Co Voile Platinum Diamond Brooch PinMETAL: Platinum. MEASUREMENTS: Brooch is 30mm in diameter. GEMSTONES: Diamonds approx. 0.80ctw. Comes with brooch. MARKED: Tiffany & Co, pt950. WEIGHT: 8 grams.Gemstones have not been graded for cSee Sold Price
SoldEDWARDIAN PLATINUM DIAMOND BAR PIN.An Edwardian, platinum (tested) bar pin set with approx. 3.50 ct. tw. Old European cut, natural diamonds of G-H color and VS clarity, 1 7/8 inches long, 9.9 grams. Tested as natural mined diamonds.See 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
