Sterling silver blue john five cushion foxtail bracelet b961 this stunning bracelet is part of our foxtail collection designed and made by c w sellors the piece boasts five cushion cabochon blue john stones that have been sourced directly from treak cliff cavern in castleton the stone is set on an intricatesterling silver foxtail chain that is fastened by a strong magnetic clasp for easy wear all our blue john jewellery is designed and crafted within our very own workshops in ashbourne d