18ct white gold blue john 015 carat diamond cluster drop earrings e2251 these elegant dropearrings feature two highly polished teardropsof rare blue john stone sourced from treak cliff cavern in castleton the stones areembellishedwith 20 sparkling diamonds totalling 015 carats set in clusters into 18 carat white gold they are suspended from 18ct white gold hooks for easy and secure wear all of our blue john jewellery is designed and crafted within our very own workshops in ashbour