A pair of late 18th century natural pearl and diamond chandelier earrings

A pair of late 18th century natural pearl and diamond chandelier earrings, the circular upper sections centred with natural pearls within a double surround of rose-cut diamonds, each suspending a pear-shaped diamond and articulated diamond-set chains, further suspending a detachable natural pearl and diamond bow and chandelier tassels set with articulated rows of seed pearls and rose-cut diamonds, set in silver and gold, spring-loaded clips and safety hoops, 10cm high, fitted centre-opening red leather case