Gemologist/Geologist at Smithsonian Institution, National Museum of Natural History
Platinum and Diamond Brooch, Van Cleef&Arpels, France, Circa 1928 Estimate: US$ 18,000 – 22,000 Centered by a round diamond weighing approximately .95 carat, further set with smaller round diamonds weighing […]
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18 Karat Gold, Platinum and Diamond Ring, Mounted by Schlumberger For Tiffany & Co. Estimate: US$ 22,000 – 28,000 Centered by a square emerald-cut diamond weighing 3.92 carats, accented by […]
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Platinum, 18 Karat Gold, Spinel and Diamond Ring Estimate: US$ 12,000 – 15,000 Centered by an octagonal step-cut red spinel weighing 10.14 carats, flanked by half-moon-shaped diamonds weighing approximately 1.25 […]
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18 Karat Blackened Gold, Fire Opal and Diamond Ring, Sifen Chang Estimate: US$ 18,000 – 22,000 Centered by a fire opal weighing 16.35 carats, framed by flowers set with round […]
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Pair of Platinum, Moonstone and Diamond Pendant-Earrings Estimate: US$ 20,000 – 30,000 The tops centered by two round cabochon moonstones, suspending clusters of 30 pear-shaped cabochon moonstones, accented by numerous […]
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