A pair of Victorian diamond-set drop earrings in gold and silver

A pair of Victorian diamond-set drop earrings in gold and silver, c1870, each designed with a central oval section set with graduated rose-cut and cushion-shaped diamonds with scroll design below, supporting a pear-shaped diamond suspended from a larger square-shaped diamond, which in turn suspends an articulated pearl-shaped diamond, all suspended from a cluster of seven circular-cut diamonds, later screw fittings, ?? cm high, later fitted case by Collingwood