Sold2022A PLATINUM AND DIAMOND SPRAY BROOCHA PLATINUM AND DIAMOND SPRAY BROOCH Set throughout with pear-shaped and round diamonds, weighing approximately 5.25 carats, measures 2 x 1 1/4 in.See Sold Price
Sold2023Platinum Tri-Color Sapphire & Diamond Brooch Pin" A lovely, remarkably wearing tri-color sapphire and diamond brooch pin set in Platinum 950 is accentuated with oval sapphires and linked by over 1 carat marquise-shaped diamonds in a prong setting.See Sold Price
Sold2017A 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
Sold2015Diamond, Platinum Spray Brooch.Diamond, Platinum Spray Brooch. Designed as a spray featuring eight marquise-cut, forty-eight baguette-cut and seventy-four full-cut diamonds weighing approximately 5.00 cttw. set in platinum. {GrossSee 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
Sold2018ART DECO 14k Gold Platinum Diamond Brooch Pin 8.3gArt Deco diamond brooch. Features an Art Deco reticulated design with pave and bezel set diamonds throughout the rectangular brooch. Unmarked but tested 14k with a platinum top. Approximately 0.55 carSee Sold Price
Sold2017Platinum Sapphire Diamond Pin BroochSapphire and Diamond Pin - stones set in platinum .6 inches by 1.1 inches, cabochon sapphire is 4mm by 6 mm. weighs 8.9 grams. No hallmark but tested Please note that this lot has a confidential reserSee Sold Price
Sold2018Platinum Sapphire Diamond Pin BroochSapphire and Diamond Pin - stones set in platinum .6 inches by 1.1 inches, cabochon sapphire is 4mm by 6 mm. weighs 8.9 grams. No hallmark but tested Please note that this lot has a confidential reserSee 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
Sold2022A diamond and platinum spray broochA diamond and platinum spray brooch designed as a tapered baguette-cut diamond ribbon, set with brilliant-cut, marquise, and pear-cut diamonds; estimated total diamond weight 10.50 carats. (Weight: 11See Sold Price
Sold2019Vintage Platinum & Diamond Brooch or PinVintage fancy and large floral and bow brooch. 139 high quality diamonds with a approx. weight of 9.60ct set in a hand fabricated platinum setting. Unmarked, tested for platinum. approx 1.5" X 2" withSee Sold Price
Sold2021Art Deco Platinum Old Mine Diamond Brooch PinArt Deco Platinum brooch with 14k gold stem, set with old mine cut diamonds. Center diamond approx. 0.65ct, side diamonds approx. - 0.84ctw. Brooch measures - 46mm x 19mm. Tested: Plat (brooch), MarkeSee Sold Price
Sold2019Platinum 1950's Fancy Diamond Brooch / Pin1950's brooch made of platinum and set with approx 2.50ctw of diamonds with I-J color and SI clarity. In overall very good condition. Measurements: 49mm x 35mm, 9.40 dwt w17347xSee Sold Price
Sold2021PLATINUM & DIAMOND FLORAL SPRAY PIN, 2.30CTWset with 80 round, marquise and baguette diamonds approx. 2.30 carats (in our opinion: F-G color, VS2-SI1 clarity, however not guaranteed), tests platinum, 1.78x1in., 14gms.See Sold Price
Sold2022Edwardian Platinum Brooch Set w/ DiamondsEdwardian brooch from beginning of 20th century designed as a half crescent, made of platinum (acid tested - the pin on the reverse is made of 18K Yellow Gold) and set with many lovely Old European CuSee Sold Price
Sold2022A FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, setA FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, set with polished onyx and rose cut diamonds, French maker's mark, French assay marks, 4.3cm, 2.2g.See Sold Price
Sold202114k GOLD & PLATINUM DIAMOND SET HORSE BROOCHFourteen karats yellow gold and platinum. diamond set horse pin. The pin consists of a horse atop a platinum base accented with a total of twenty-four round brilliant cut diamonds. The pin secures witSee 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
Sold2015BROOCH - Edwardian Platinum Bar Pin Form Brooch setBROOCH - Edwardian Platinum Bar Pin Form Brooch set with (14) rectangular faceted sapphires and (3) diamonds, stamped "JEC COA 6712", 2 1/2" long, 1/8" wide, 5.0 dwt tw; fine condition.See Sold Price
Sold2024Gold Cupid Brooch, And Platinum And Diamond Stick Pin10 karat cupid brooch with 14 Karat Wings weighs 8.24 grams, along with a stick pin set with three Diamonds [H/SI] of approximately .18 carats; 3.0 gramsSee Sold Price
Sold2023AN EDWARDIAN 14K WHITE GOLD AND PLATINUM PIN | PENDANTThe 14k gold and platinum brooch/pendant is set with four 0.03 carat diamonds and a central green faceted gemstone, marked 14k and Plat. on the clasp. Pendant measures 1.625 x 0.875 inches. Green faceSee Sold Price
Sold2022Art Deco Platinum Sapphire and Diamond BroochArt Deco Platinum Sapphire and Diamond Brooch Item # 6953 Category Pins & Clips *Art Deco Platinum Sapphire and Diamond Brooch* Weighing 20.9 grams Set with 24 dangling diamonds weighing app. 4.70 Ct.See Sold Price
Sold2020McTeigue Platinum Diamond Open Circle Brooch PinPlatinum open circle brooch, set with baguette and round diamonds - approx. 2.40ctw. Brooch is 30mm in diameter. Marked: Maker's Mark Irid. Plat. Weight - 8.5 grams.See Sold Price
Sold2022Platinum Brooch Set w/ DiamondsRetro brooch (from 1930s/40s) designed as a floral bouquet made of platinum (acid tested) and set with Single Cut diamonds weighing a total of approximately 3.5 Carats. The pin on its reverse is madeSee Sold Price
Jun 25Miami Auction GalleryVintage 21.90cts Platinum Mixed-cut Natural Diamond tassel Brooch Pin$70,000
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