Blue john ring round split shoulder silver r029 this stunning ring part of our heritage handmade jewellery collection featuresa strikinground cabochon of rare blue john stone that has been sourced directly from treak cliff cavern in castletonthe stoneis set within a highly polishedsterling silver base and completed with a contemporarylooking simplesterling silver band all our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a t