An early 20th century diamond and emerald pendant necklace

An early 20th century diamond and emerald pendant necklace
The octagonal shaped pendant designed as a brilliant-cut diamond flowerhead cluster with central millegrain-set brilliant-cut diamond within a calibré emerald and claw-set diamond border, to a diamond four stone suspension and platinum neckchain, circa 1925, with detachable brooch fitting and additional neckchain, pendant 5.0cm long