DIAMOND AND SAPPHIRE BROOCH, TIFFANY & CO. - The cushion-shaped sapphire weighing approximately carat, old mine, old European-cut and single-cut diamonds weighing a total of approximately carats, signed Tiffany & Co.
An Art Deco diamond brooch Cartier circa The pavé-set surmount supporting articulated plaques set with circular- single- square-cut and baguette diamonds and a briolette drop detachable brooch fitting signed Cartier French assay marks.
Brooch centring on a baroque cultured pearl of iridescent aubergine tint, encircled within lines of millegrain-set circular- and single-cut diamonds, and calibré-cut sapphires, to a similarly set pendant of ribbon design, 1910
An Art Deco gold, diamond, aquamarine and ruby brooch. Centring a rectangular aquamarine framed by calibré rubies, surmounted by stylised geometric foliate and swag set with brilliant-cut diamonds, suspending a triangular pendant with foliate motif set wi
AN EDWARDIAN DIAMOND, PEARL AND RUBY BROOCH Designed as an old-cut diamond foliate scroll with circular-cut diamond surmount weighing carats to the oval-shaped ruby and pearl drop detail, pearl untested, circa 1910
An Art Deco opal, conch pearl and diamond brooch the impressive diamond set geometric frame centrally set with a fine oval opal displaying intense play of color surmounted by two conch pearl drops and fine black enamel and onyx detail, all in platinum