Bidspirit auction | A 925 silver and Blue

A 925 silver and Blue John Ring - A 925 silver ring is set with a single cabochon Blue John stone, displaying characteristic purple, cream, and translucent banding with dark internal inclusions. The ring is incised with the mark 925. Blue John is a rare variety of fluorite found exclusively in the Castleton area of Derbyshire, England. Stone dimensions: approximately 20mm x 10mm.