A 19th century gem-set butterfly pendant

A 19th century gem-set butterfly pendant, centred with an old circular-cut diamond weighing approximately 0.55cts, set with further old circular-cut diamonds, four pear-shaped emeralds and suspending a natural pearl, set in silver on gold, folding pendant loop, detachable fine-link silver neck chain set with old circular-cut diamonds and a natural pearl, pendant 3.5cm high, chain 46cm long

Accompanied by report number 5782-400 from GCS dated January 2022 stating that the two pearls measure 4.6 - 4.7 x 6.0mm 4.2 - 4.2 x 5.3 mm approximately and are natural saltwater.