DESCRIPTION: A lovely genuine vintage sterling silver and genuine blue john gemstone ring. Blue john is an extremely rare mineral and can only be found in Derbyshire in the UK, it is in fact Britain's rarest mineral. The ring sizes at approx. UK Q or US 8.25, weighs approx. 3.09g and is fully hallmarked for sterling silver, dating to 1967. The blue john has an old glue repair on the rear, see pictures/video.
