Antique diamond coronet cluster engagement ring in 18kt yellow gold. Centrally set with an estimated 0.40ct cushion shape Old Mine cut diamond in a raised claw setting, surrounded by a row of round old cut diamond in claw settings, to a circular cluster design with curving claws and pierced gallery, flanked by raised shoulders with double ribbed terminals before smoothing to a slim shank. Estimated total diamond weight 0.80cts.