When you buy through links on our articles, Future and its syndication partners may earn a commission. An amethyst set in silver was discovered in a castle moat in Poland. | Credit: Lech Marek; CC BY ...

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.

Unlike most Anglo-Saxon gold hoards, which are typically recovered from burial contexts alongside human remains and other grave goods, these objects were found scattered across a slope with no ...