An early Victorian half pearl and rock crystal cluster brooch

An early Victorian half pearl and rock crystal cluster brooch, circa 1840, the central oval facetted rock crystal with a pink foiled back, within a graduated half pearl surround, 2.2cm long; together with a regency black and white enamelled glazed brooch, 1.6cm long; three early Victorian white paste pavé set clasps, with later two rows of simulated pearls between; a row of seed pearls; and a small collection of cultured pearls