An enamel and diamond mourning ring, circa 1793

An enamel and diamond mourning ring, circa 1793, of oval outline, centring on a glazed compartment containing a funerary urn in white enamel, decorated with festoons of rose-cut diamonds, to a deep blue guilloché enamel ground, within an outer border of blue and white enamel, mounted in gold, the reverse with a dedicatory inscription reading 'Elizh Ann & Edwd Horn ob in 1792 & 1793', size P, front measuring 2.9 x 1.8cm