Late 18th century cushion cut diamond five petal flowerhead brooch, c.1790, centred by a principal slightly hexagonal old cut diamond in border of smaller cushion cuts,
the five petals of openwork navette form with central line of graduated collet diamonds to a spaced two row line border of small cushion cut, all close collet and cut down collet set in silver Width: 6.8cm / 2 5/8''
Central diamond spreads 7.3 x 5.3mm Weight: 31g
Late 18th century cushion cut diamond five petal flowerhead brooch, c.1790, centred by a principal slightly hexagonal old cut diamond in border of smaller cushion cuts,