Sold2016Amethyst, Diamond, Platinum, Gold Brooch, Jean SchlumbeAmethyst, Diamond, Platinum, Gold Brooch, Jean Schlumberger for Tiffany & Co. The Bird on a Rock brooch features a cushion-shaped amethyst measuring 27.00 x 22.00 x 16.18 mm and weighing approximSee Sold Price
Sold2022Marcus & Co. Platinum, Gold, Amethyst and Diamond BroochMarcus & Co. Platinum, Gold, Amethyst and Diamond Brooch One lozenge-shaped amethyst ap. 27.0 x 18.0 x 9.7 mm., rose-cut diamonds, signed M & Co., c. 1915, ap. 8.2 dwts. CSee Sold Price
Sold2021Attributed to Edward Everett Oakes Arts and CraftsAttributed to Edward Everett Oakes Arts and Crafts Gold, Platinum, Diamond, Amethyst and Pearl Brooch The shield-shaped brooch of open-work scrolling grape vines set throughout with 5 oval and round aSee Sold Price
Sold2018*An 18 Karat Yellow Gold, Platinum, Amethyst, DiamondAn 18 Karat Yellow Gold, Platinum, Amethyst, Diamond and Ruby Articulated Turtle Pendant/Brooch, containing one oval mixed cut amethyst weighing approximately 23.91 carats, seven round brilliant cut dSee Sold Price
Sold202014K/Platinum Amethyst & Diamond Double Clip BroochRetro 14K rose gold and platinum, amethyst and diamond double clip brooch, composed of two 18mm x 15mm emerald-cut amethyst and eight round single-cut diamonds, approx: 0.50 ct tw., color: H-I, claritSee Sold Price
Sold201818KT Gold, Platinum, and Multi-Gemstone Brooch, signed18KT Gold, Platinum, and Multi-Gemstone Brooch, signedthe carved amethyst urn with a gold and diamond accented base, the finely carved gemstone bouquet to include aquamarine, pink tourmaline, citrine,See Sold Price
Sold2017JEWELRY. Amethyst and Diamond Jewelry Grouping.Includes a 14kt white gold and amethyst briolette pendant with diamond accents and trefoil of diamonds to bail, on a 14kt white gold chain; and a platinum brooch with central oval cut amethyst with aSee Sold Price
Sold2022David Webb 18K Platinum, Amethyst and Diamond BroochDavid Webb exceptional Brooch Pendant Authentic and signed Large 30mm X 18mm Faceted Amethyst set in 18k gold and Platinum. 31.7 Grams with Approx 1.5 Carats Diamonds. This is a great collector pieceSee Sold Price
Sold2022Platinum & 18kyg Tiffany & Co. Jean Schlumberger Diamond BroochTiffany & Co. Jean Schlumberger platinum and 18k yellow gold "Star Fish" brooch designed with sixty-two diamonds, 1.28 carats total weight, appx. 2 3/4". 46.65gr. Signed "Tiffany Schlumberger 18K PLATSee Sold Price
Sold2015Victorian amethyst, diamond & 14k gold broochVictorian amethyst, diamond & 14k gold broochSee Sold Price
Sold2020Diamond, Yellow Sapphire, Platinum, Gold Brooch,Diamond, Yellow Sapphire, Platinum, Gold Brooch, Schlumberger for Tiffany & Co. The brooch features a round-cut yellow sapphire weighing approximately 1.10 carats, enhanced by full-cut diamonds weSee Sold Price
Sold2022Diamond, Platinum and 18K Gold Brooch,57 round diamonds totaling 1.75 carat, high grade, double locking bar closure, 21.7 grams, with appraisal of $7,850.00, 1 5/8" X 2 3/4".See Sold Price
Sold2021JADE DIAMOND PLATINUM & 18kt WHITE GOLD BROOCHChinese jade platinum and 18kt white gold brooch with diamonds. Marked PLAT 18ct. Brooch measures 46mm length. Jade measures 28mm x 17mm. Total weight 4.5dwt.See Sold Price
Sold202255226: Van Cleef & Arpels Emerald, Diamond, Platinum, Van Cleef & Arpels Emerald, Diamond, Platinum, Gold Brooch Stones: Round-cut emeralds weighing a total of approximately 2.60 carats; full-cut diamonds weighingSee Sold Price
Sold2018Art Deco Diamond, Platinum, White Gold Clip-BrooArt Deco Diamond, Platinum, White Gold Clip-Brooch The brooch features European and baguetSee Sold Price
Sold2018Verdura "Target" Diamond BroochVerdura "Target" Diamond, Platinum, 18k Yellow Gold Brooch. Designed as arrows in a bull's-eye, featuring round brilliant-cut diamonds weighing a total of approximately 1.60 cttw., set in a platinum aSee Sold Price
Sold202255223: David Webb Diamond, Platinum, Gold Brooch StoneDavid Webb Diamond, Platinum, Gold Brooch Stones: Full-cut diamonds weighing a total of approximately 0.80 carat Metal: Platinum, 18k gold Marked: David WebbSee Sold Price
Sold2021Retro Citrine, Diamond, Platinum-Topped Gold CliRetro Citrine, Diamond, Platinum-Topped Gold Clip-Brooch Stones: Emerald and baguette-cut citrines; European and full-cut diamonds weighing a total of approximately 1.00 carat Metal: Platinum-topped 1See Sold Price
Sold2019Diamond, Platinum, White Gold, Pendant-Brooch-NeDiamond, Platinum, White Gold, Pendant-Brooch-Necklace The pendant-brooch features marquise-shaped diamonds weighing a total of approximately 2.35 carats, enhanced by baguette-cut diamonds weighing aSee Sold Price
Sold2021Edwardian Diamond, Emerald, Platinum-Topped GoldEdwardian Diamond, Emerald, Platinum-Topped Gold Brooch Stones: European and Swiss-cut diamonds weighing a total of approximately 1.40 carats; calibré-cut emeralds Metal: Platinum-topped 18k goSee Sold Price
Sold2018Diamond, Platinum, 18k Yellow Gold Spray Brooch.Diamond, Platinum, 18k Yellow Gold Spray Brooch. Featuring ninety-seven full-cut diamonds weighing a total of approximately 4.50 cttw., set in a platinum, 18k yellow gold textured spray motif mountingSee Sold Price
Sold2019Diamond, Ruby, Platinum, 14k Rose Gold Brooch.Diamond, Ruby, Platinum, 14k Rose Gold Brooch. Featuring twenty-eight old European-cut diamonds weighing a total of approximately 2.00 cttw., accented by twenty-eight square-cut rubies weighing a totaSee Sold Price
Sold2021Antique 14K Yellow Gold Platinum Diamond Amethyst RingThis is an antique ladies cocktail ring rendered in fine 14K yellow gold and platinum. The diamond filigree setting features a large faceted amethyst gemstone. Size: 5.5 US. Total weight: 11.6g. The aSee Sold Price
Sold2022Victorian Diamond, Ruby, Platinum 14k Gold Pansy BroochVictorian Diamond, Ruby, Platinum, 14k Yellow Gold Pansy Brooch. Designed as a pansy, the top two petals featuring old mine-cut rubies, the center and bottom petals accented by rose-cut diamonds, setSee Sold Price
Sold2018Vintage Diamond, Platinum, 14k Yellow Gold Bow Brooch.Vintage Diamond, Platinum, 14k Yellow Gold Bow Brooch. Designed as an open work bow with black velvet backing, the center featuring one old European-cut diamond weighing approximately 0.30 ct., accentSee Sold Price
Feb 27Miami Auction GalleryEstate Diamond 29.29ct Intaglio Amethyst Gold Platinum Brooch Pendant$3,600
3 days LeftBidhausDavid Webb Platinum & 18K Yellow Gold Amethyst Coral And Rock Crystal Star Brooch$15(1 bid)
Feb 16DuMouchellesArt Deco Style 0.4ct Mine Cut Diamonds, Platinum & Gold Brooch, W 0.25'' L 2.5'' 5g$100
Feb 19Mynt AuctionsMAGNIFICENT FRENCH 14K W GOLD NECKLACE DIAMOND & GOLD PLATINUM AMETHYST PENDANT$20
Feb 22Doyle New YorkTiffany & Co. Platinum, Gold, Diamond and Cultured Pearl Flower Brooch$750(1 bid)
6 days LeftMynt AuctionsMAGNIFICENT MAUBOUSSIN 14K GOLD PLATINUM SILVER DIAMOND SAPPHIRE BROOCH BOXES$20
4 hrs LeftMynt AuctionsMAGNIFICENT MAUBOUSSIN 14K GOLD PLATINUM SILVER DIAMOND SAPPHIRE BROOCH BOXES$1,400
13 hrs LeftWinbids Auctions8.25 Ctw in Diamonds & Sapphires Art Deco 18k gold & Platinum Brooch$1,600
5 hrs LeftChristie'sNO RESERVE | TIFFANY & CO., JEAN SCHLUMBERGER MALTESE CROSS DIAMOND AND GOLD BROOCHPreview Only
Feb 16Mynt AuctionsMAGNIFICENT VICTORIAN FRENCH PLATINUM DIAMOND NECKLACE BROOCH WITH CHAIN$27(2 bids)