The combination of filigree and granulation techniques arrived in Norway during the early Middle Ages from the Byzantine Empire, partly via Carolingian goldsmithing traditions. The Carolingian period, ...

A rare ring, set with sapphire, emerald and garnets and once owned by a medieval bishop, is coming to auction on March 26 sale of jewelry, silver, and objets d’art at Noonans Mayfair, in London.