A fine diamond and platinum plaque brooch
of rectangular form, centred with a collet-set round brilliant-cut diamond, within a fanned spray design of bagutte, round, and marquise-cut diamonds, within a shaped rectangular border of round brilliant-cut diamonds, mount unmarked (tests as platinum), 4 x 2 cm, 10.9 grams.
Sold for £1,000
A fine diamond and platinum plaque brooch
of rectangular form, centred with a collet-set round brilliant-cut diamond, within a fanned spray design of bagutte, round, and marquise-cut diamonds, within a shaped rectangular border of round brilliant-cut diamonds, mount unmarked (tests as platinum), 4 x 2 cm, 10.9 grams.