An unusual Georgian-era mourning ring with a rectangular garnet cabochon center surrounded by opalescent white enamel and a black enamel border. In the 18th century white enamel was commonly used in mourning jewelry to represent the loss of a child. The inscription inside corresponds with that symbolism as it reads "John Poore, born 24 Nov. 1805, died 8 Nov 1806." A little research suggests the wearer might have been part of a Poore family that settled in New Hamphire in the 18th century.
Though the ring represents a tragedy, rings like this were meant to celebrate the life of a loved one. The glowing red garnet heart and halo of pink-tinged white enamel feels particularly poetic and ethereal.
Currently a size 7-/4 and best not resized. Note that rings of this era are somewhat delicate and should be worn carefully.