Gübelin, an emerald, natural pearl and diamond brooch, mid 20th century, centring on a step-cut

Gübelin, an emerald, natural pearl and diamond brooch, mid 20th century, centring on a step-cut emerald measuring approximately 10.3 x 8.9 x 4.5mm, within a surround designed as an abstract starburst, set with brilliant-cut and baguette diamonds, and pearls, mounted in platinum, length 8.3cm

Accompanied by report number 25045 from GPL London dated 30th August 24 stating that the three largest pearls are natural saltwater, the largest measuring 6.6mm diameter, the remaining pearls untested