Antique Old European cut diamond coronet cluster ring in gold

Antique Old European cut diamond coronet cluster ring in 18kt yellow gold. Centrally set with an estimated 1.12ct round Old European cut diamond in a slightly raised claw setting, encircled by a row of round Old European cut diamonds in claw settings, to a circular cluster design with curving claws and pierced open gallery, met to either side with stylised diamond set shoulders with ribbed terminals and fine incised shank.