589: Rare Platinum and Diamond Lady's Square-Form Art Deco Ring, composed of a central Old European-cut diamond weighing 4.25 carats surrounded by a single row of twelve round brilliant- and Old European-cut diamonds, total weight 2.25 carats
590: Spectacular Fourteen-Karat White Gold and Diamond Opera Length Necklace, composed of a double row of three hundred eighty prong-set round brilliant-cut diamonds set in rectangular box flexible links, estimated total weight of diamonds 80.22 carats,
591: Stunning Art Deco Platinum, Diamond and Moonstone Brooch/Clasp on a Triple Strand of Round White Pearls, ca. 1930, the rectangular filigree brooch collet-set and pave with diamonds and a central moonstone cabochon and detachable from a triple strand
592: Fourteen-Karat White Gold and Graduated Black South Seas Pearl Necklace, composed of twenty-nine black South Seas pearls ranging from 12.0-15.5mm in diameter of even dark color with fourteen-karat white gold circular spring clasp set with small
593: Vermeil and Gemstone Blackamoor Pendant Drop, cast as a turbaned Blackamoor bust, the turban and coat set with nine cognac diamonds and two white diamonds, estimated total weight 1.0 carats, five faceted rubies, estimated total weight 1.50 carats,
594: Fourteen Karat Matte-Finish Yellow Gold, Gemstone and Diamond Necklace, composed of alternating plain and gem-set links, the alternate links set with squared cabochon tourmalines, citrines and amethysts, four links accented with round brilliant-cut
595: Platinum, Eighteen-Karat Yellow Gold, Emerald and Diamond Lady's Ring, composed of a central emerald-cut natural Columbian emerald weighing an estimated 8.05 carats, flanked on either side by white rectangular-cut diamonds, estimated total weight
596: Eighteen-Karat Yellow Gold and Diamond Wide Band Ring, the wide gold band pave set on the top with thirty-four baguette-cut white diamonds arranged in a staggered checkerboard pattern, estimated total weight 5.0 carats
597: Striking European Fourteen-Karat Yellow Gold, Enamel, Opal and Diamond Bangle Bracelet, the hinged polished gold body inlaid with black onyx, nine round brilliant-cut diamonds and six plaques of Australian black opal in an abstract pattern, signed
598: Spectacular Strand of South Seas Baroque Pearls, consisting of twenty-two pearls ranging from approximately 17.0 mm to 21.0 mm in diameter and ranging from white to gold to rose in color, all with high luster and strong orient, l. 16"
599: Pair of Fourteen-Karat Yellow Gold and Jade Cufflinks, each composed of two cylindrical bars of Burmese jadeite in even "apple mint" green color with yellow gold mounts and connecting chains
600: Good Fourteen-Karat White Gold, Diamond and Pearl Necklace, composed of twenty-nine round South Seas pearls ranging from 12.5 mm to 13.5 mm in diameter and of light white/rose color, high luster and good orient, the necklace with four diamond-set
601: Eighteen-Karat White Gold, Sapphire and Diamond Lady's Cocktail Ring, composed of a central oval-cut Australian sapphire weighing an estimated 5.50 carats surrounded in a ballerina-style setting with baguette- and round brilliant-cut diamonds,
602: Platinum, Eighteen-Karat Yellow Gold, Sapphire and Diamond Lady's Ring, composed of a central prong-set Kashmir blue sapphire weighing 3.20 carats, cushion cut and flanked on either side by a radiant pear-shaped white diamond. Note: Kashmir sapphires
603: Unusual Strand of Tahitian Gray Pearls, composed of thirty-seven round gray pearls ranging from 10.0 mm to 12.5 mm in diameter, each of pewter gray color with high luster and well-matched color, l. 16"
604: Pair of Fourteen-Karat Yellow Gold and Gray Pearl Earrings, each composed of a 9.0-10.0mm Tahitian dark gray spherical pearl with golden-colored orient peg-set on fourteen-karat yellow gold posts
605: Dramatic Pair of Eighteen-Karat White Gold, Amethyst and Diamond Drop Earrings, each composed of a horizontally mounted oval-cut amethyst in white gold diamond-set mounts and suspended from white gold diamond-set bow-shaped tops, total weight of
606: Pair of Eighteen-Karat White Gold, Pearl and Diamond Drop Earrings, each composed of a pear-shaped pendant cultured pearl suspended in a diamond-set tear-drop frame, total weight of diamonds .47 carats
607: Eighteen-Karat White Gold and Diamond Lady's Ring, composed of a central 1.51-carat radiant-cut diamond in a bezel setting, VS-2 Clarity Grade, K Color Grade, surrounded by a border and split shank set with a total of .68 carats of round
608: Pair of Eighteen-Karat White Gold, Ruby and Diamond Drop Earrings, each composed of an oval-cut ruby centrally set in a white gold diamond-set drop with an additional oval-cut ruby prong set at the post, total weight of rubies 1.70 carats, of