Marcus & Co. Art Nouveau brooch, “Tibula” shaped 18k yellow gold brooch set with three natural pearls, the natural center button pearl approx. 10 mm in diameter (G.I.A. certificate, 3 natural freshwater pearls, weight 24.90 grams, measurement range from 5.46 to 12.26mm), 16 sugarloaf cabochon sapphires, the two large and high dome middle sapphires with a purple hue, 20 pave set round diamonds all surrounded with clear plique-a-jour further trapped with platinum flakes, signed c. 1897
Marcus & Co. Arts & Crafts “Byzantine Revival” black opal (approx. 4 carats TW) ring in an elaborate wirework and applied beadwork 14k gold mounting, signed, c.1910
Marcus & Co Art Nouveau pendant necklace, Handwrought 18K yellow gold set with a large cabochon natural emerald center stone surrounded by green enamel details with gold looping bezel mounts and platinum topped diamond side details set with 43 diamonds, cabochon emerald pendant drop with a green enamel and gold capped top, signed, c. 1900
Marcus & Co Art Nouveau pendant necklace, Handwrought 18 K yellow gold set with a large cabochon natural emerald center stone (approx. 30+ carats TW, G.I.A. certificate, moderate clarity enhancement, 18.30 x 18.20 x 12.20mm) surrounded by green enamel details with gold looping bezel mounts and platinum topped diamond side details set with 43 diamonds (approx. 6 carats TW), cabochon emerald pendant drop (approx. 15 carats TW) with a green enamel and gold capped top, elaborate looping 18K yellow gold chain, signed, c. 1900
George Marcus / Marcus & Co., New York “Snake” lapel pin, finely hand chased and chiseled 18k gold snake wrapping around a large polished cabochon natural emerald bead (approx. 7 carats) and further set with a diamond in the head of the snake, signed: M. & Co. and #15413, c. 1900
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