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18K Gold, Platinum, Diamond, and Carved Hardstone...

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18K Gold, Platinum, Diamond, and Carved Hardstone
© GROGAN & Co., Boston, MA, USA

18K Gold, Platinum, Diamond, and Carved Hardstone Brooch: 18K Gold, Platinum, Diamond, and Carved Hardstone Brooch ca. 1920; featuring two flowers centering...

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Antiques & Collectibles Price Guide

  • 18K Gold, Platinum, Diamond, and Carved Hardstone
    Brooch: Brooch ca. 1920; featuring two flowers centering transitional-cut diamonds weighing approx. 0. 75 and 0. 60 ct. further set with single-cut diamonds; the leaves ... [more like this]
  • An Art Deco diamond, hardstone and platinum
    pendant watch with chain 17 jewel Swiss movement by Fortis, rectangular case with pendant surmount and hardstone background set with full and single cut diamonds ... [more like this]
  • Art Deco Platinum, Hardstone, and Diamond
    Bonsai Tree Brooch, Ernst Paltscho: Bonsai Tree Brooch, Ernst Paltscho, Austria, c. 1920, designed as a potted bonsai tree set with old European-, old single-, rose-, and ... [more like this]
    AND TWO 14K YELLOW GOLD MEDALLION CHARMS. Post-back earrings set with total of 18 round diamonds. Round charm with swan motif having green hardstone body; heart shape charm ... [more like this]
  • *(please note small chip to the end of her
    nose)*CAMEO BROOCH: 14K and platinum framed brooch with hardstone cameo carved in the classic Grecian profile. In the bezel are 4 old European round cut diamonds totaling ... [more like this]
  • Art Deco Lapis, Turquoise, and Diamond Brooch,
    Mauboussin, France, designed as a lapis frame centering a shaped turquoise cabochon, old European-cut diamond accents, and flanked by later cultured pearls, 18kt white gold ... [more like this]
  • Platinum, Hardstone Cameo, and Diamond Ring,
    depicting a maiden in Elizabethan dress, marquise-cut diamond shoulders, size 5 3/4. ... [more like this]
  • Small Group of Jewelry Items, including a
    10% iridium platinum and diamond ring, size 5, a 14kt gold bead bracelet, a gold-tone and hardstone ring, and a bangle bracelet. ... [more like this]
  • 14k Yellow Gold And Platinum Bar Pin bezel
    set with 3 European cut diamonds (approx. 0.52ct.t.w.); and an 18k yellow gold bar pin set with a hardstone cameo and small pearls ... [more like this]
  • Small Group of Mostly Masonic Jewelry, including
    an oversized seal ring, a 10kt gold ring, two gold and hardstone-mounted claw pins, a pair of platinum and diamond tie tacks, a sterling silver and marcasite tie tack, and ... [more like this]
  • Three Pairs of Cufflinks: Three Pairs of
    Cufflinks one platinum with baguette diamonds and French-cut sapphires, 7. 86 dwts. ; one 18k yellow gold with blue and white enamel, 5. 50 dwts. ; and one 14k yellow gold ... [more like this]

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