Blue john abstract flame 9ct yellow gold necklace p2559rthis exquisite necklace boasts an unmissable abstract flame design crafted from 9ct yellow gold that sits gracefully on a delicate yellow gold chain set in the centre of the flame creating a beautiful contrast is a stunning round cabochon piece of rare blue john stone that has been sourced directly from treak cliff cavern in castletonrall our blue john jewellery is designed and crafted within our very own workshops in ashbourne derby