A George IV enamel and gold mourning ring

A George IV enamel and gold mourning ring, circa 1822, centring on a glazed panel of woven hairwork within a foliate gold border on a black enamel ground, to floral gold shoulders further accented with black enamel, the reverse engraved ' Sarah Slatter died 27th Jan 1822 Aged 36', size O, British hallmark for 18ct gold, date letter for 1822