Blue john bracelet marquise link 9 stone 9ct yellow gold b184 this exquisite bracelet boasts nine delicate oval shaped pieces of rare blue john stone that has been sourced directly from treak cliff cavern in castleton the stones are set within an enchanting 9ct yellow gold chain that hangs gracefully from the wrist and fastens by a classic bolt ring clasp for easy wear all our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a team of s