Lady’s seed pearl, onyx and diamond fob watch, 1920. The cut-cornered rectangular dial applied with Arabic numerals, signed Weinberg, the reverse decorated with onyx and single-cut diamonds, to a seed pearl mesh chain and brooch, accented with single-cut diamond panels. Via Sotheby’s.
An Art Deco diamond and onyx brooch by Cartier Designed as a navette shaped plaque of pierced geometric design, set with old-brilliant-cut diamonds and calibré onyx detail, with diamond border and trefoil terminals, circa 1925 Signed Cartier Londre
Rare Belle Epoque Conch Pearl Diamond Platinum Butterfly Brooch Circa 1900
Rare Belle Epoque Platinum Diamond and Conch Pearl Butterfly Brooch, 8 Carats of Diamonds (the center Antique Cushion Cut Diamond is about 1 Carat). Beautifully hand fabricated with complete back azuring. The Conch Pearl is 4 Carats. United States, circa 1900. 1stdibs.com.
An Art Deco rectangular sunburst diamond brooch, the brooch of an open-plaque design with pointed ends, set throughout with old brilliant-cut diamonds, estimated to weigh a total of 6 carats, set to a pierced platinum mount and brooch fitting, gross weight 14.4 grams, circa 1925.