, centred by a fine bouton white pearl, 4.97ct, with rose overtone, to a stepped two row old brilliant cut diamond border, outer frame of spaced smaller white pearls, diamond weight approximately 3.80cts, stamped 'BB&B', serial number 23770, the brooch fitting detachable, hinged pendant loop to verso, accompanied by Gem & Pearl Lab report no. 22492 for the pearls, giving a natural saltwater origin opinion for the principal 4.97ct pearl and that samples of the pearl border were also found to be of natural saltwater originDiameter 2.8cm / 1 1/8''Weight: 18g
19th century three stone diamond ring, c.1890, set with graduated old brilliant cut diamonds, small single cut diamond accents in between, claw set to a scroll carved gallery and fluted shoulder, mounted in gold, inscribed 633, total diamond weight approximately 2.75cts (the central stone being approximately 1.30ct)
Art Deco diamond and rock crystal panel brooch by Boucheron, Paris, of geometric design formed of stepped overlaid polygonal crystal and diamond panels, the larger crystal septagon panel base topped by a pave diamond hexagon and a crystal pentagon, all pierced through and with diamond geometric join pave set with baguette and round brilliant cut diamonds, mounted in platinum and white gold to the hinged clip to back, this signed 'Boucheron Paris', with French assaymarks and indiscernible workshop mark