λ A fine seed pearl, ivory and diamond mourning ring, circa 1792

λ A fine seed pearl, ivory and diamond mourning ring, circa 1792, of navette-shaped outline bordered with cushion-shaped diamonds, centring on a glazed compartment containing a funerary monument composed of a painted ivory panel, surmounted by a tiny urn set with a seed pearl, outlined with rose-cut diamonds, on a ground of woven hair, mounted in gold, the reverse with a dedicatory inscription 'Maria Heathcote died 5 Jany 1792 Aged 85', size O1/2, front measuring 3.1 x 2.0cm, fitted case