Sold2023Mid Century Diamond, Platinum PinMid Century Diamond, Platinum Pin Of sinuous design, featuring ninety-one marquise, round brilliant, baguette, and single-cut diamonds weighing a total of approximately 2.05 cttw., set in a platinum pSee Sold Price
2020Art Deco Krementz Green Jade Diamond Platinum PinSigned Krementz art deco gemstone brooch. Features a platinum topped pin backed with 14k gold, and embellished with a pair of diamonds flanking an apple green jade measuring 15mm x 11mm. Total diamondSee Sold Price
Sold2023Theodore B. Starr Diamond, Platinum & Gold PinProperty from a Private Collection, Dataw Island, SC Description: Theodore B. Starr Diamond Platinum and Gold Pin/Pendant, in starburst floral design with variously cut diamonds G color VS2 SI1, tSee Sold Price
Sold2016Art Deco 1.50ctw Diamond Platinum Brooch PinA platinum brooch set with approximately 1.50ctw of old mine cut diamonds separated by synthetic sapphires. The brooch measures 43mm x 23mm and weighs 6.0 grams.Gemstones have not been graded for coloSee Sold Price
Sold2022Stunning Platinum Diamond PinStunning Platinum Diamond Pin Measuring 3.75" in length, possibly a hat pin and or hairpiece, featuring three rows do round brilliant cut diamonds and a row of straight baguettes (g-VS1) approx. 12ctSee Sold Price
Sold2022Stunning Platinum Diamond PinStunning Platinum Diamond Pin Measuring 3.25" in length, likely a hat pin or hairpiece, with wave like placeholders on the reverse, featuring three rows of brilliant round cut diamonds accented with aSee Sold Price
Sold2022Edwardian Diamond, Platinum, 18k Heart Pin PendantDesigned as a heart, featuring sixty-four Old European-cut diamonds weighing a total of approximately 2.74 cttw., set in a platinum-topped, 18k yellow gold pin pendant mounting measuring approximatelySee Sold Price
Sold2015Early 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
Sold2021PLATINUM & 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
Sold2022DECO 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
Sold2015Diamond, Pearl & Platinum Circle Pin.Pin contains 26 OMC and OEC cut diamonds. Approximately 1.5 cts, TW 12.5 dwt.See 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
Sold2018Art 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
Sold2020Art Deco Diamond Sapphire Platinum Stick PinEstate Art Deco Diamond Sapphire Platinum Stick Pin - A lovely bar stickpin that is approximately 2.3 grams and .75 x .25 inches. About .5 carat of white diamonds .375 carat of sapphires. An easy convSee Sold Price
Sold2023Tiffany & Co Schlumberger Apollo 18k Yellow Gold Pave Diamond Platinum BroochTiffany & Co. Schlumberger Apollo Pave Diamond Platinum Yellow Gold Pin Brooch Comes with C.O.A. ! Brand: Tiffany & Co. Collection: Schlumberger Style: Pin Brooch Condition: Pre-owned Diamond: 8 TCW MSee Sold Price
Sold2020Mid 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
Sold2021Vintage Diamond Circle PinVintage Diamond Circle PinPlatinum pin with 2.48cttw diamonds. Color G-Clarity VS2. Diameter 1 1/4 inches (pin)From the Estate of Roberta Folonie SchuetzSee Sold Price
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
Sold2022JE Caldwell Antique Diamond and Emerald Platinum Bar Pin BroochCa. first quarter 20thC. Amazing quality throughout with 68 clear Columbian emeralds and 82 clear full cut diamonds surrounding the large central EVS1 diamond. Weight approx. 12.9 Grams. Measures apprSee Sold Price
Sold2022Stunning Vintage Platinum, Diamond Filigree PinStunning Vintage Platinum, Diamond Filigree Pin Measuring (2.39" x 0.95") adorned with European cut diamonds including a 1.70ct center stone (I-VS2, I-SI1) approx. 3.42ct tdw, pendant bar located at tSee Sold Price
Sold2022Retro Diamond, Ruby, Sapphire, Emerald, Platinum PinDesigned as two flowers with leaves, one flower centering a round sapphire cabochon measuring approximately 14.50 mm, highlighted by eight carved and one oval ruby cabochon, each ranging from approximSee Sold Price
Sold2022Vintage Platinum Diamond Bar PinVintage Platinum Diamond Bar Pin Measuring 3.39" in length (11mm wide) containing (5) European cut diamonds (2 are missing) (approx. 2.43ct tdw, H-I VS2), not stamped or signed, electronically tested.See Sold Price
Sold2020Art 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
Sold2017CARTIER 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
May 31Miami Auctions & Appraisals LLC Antique Deco Sailfish Aquamarine Diamond Platinum Brooch PinUS$12,500
May 31Miami Auctions & Appraisals LLC Vintage 6.69cts Old European Diamond Platinum Brooch PinUS$14,000
May 31Miami Auctions & Appraisals LLC ELWOOD VAN CLIEF Vintage Diamond Platinum Brooch Pin 17.50 CaratsUS$33,000
3 days LeftJasper52Authentic! Tiffany & Co Schlumberger 18k Yellow Gold Platinum Diamond Pin BroochUS$6,000
May 31Miami Auctions & Appraisals LLC CARTIER Vintage 6.50cts Diamond Platinum Elegant Botanical Pin BroochUS$26,250
May 31Miami Auctions & Appraisals LLC Antique Deco 6.55cts Old European Diamond Platinum Filigree Brooch PinUS$14,000
5 days LeftMiami Auction GalleryANTIQUE BLACK STARR & FROST-GORHAM DIAMOND PLATINUM DECO BROOCH PINUS$12,750