18ct white gold whitby jet 018 carat diamond square stud earrings e1334 hand cut set and polished in our own workshop in ashbourne derbyshire these unique whitby jet and diamond earrings boast the finest whitby jet stone that has been sourced locally from the whitby coastline north yorkshire using only the finest quality diamonds their total weight for the pair is 018ct they are set in 18 carat white gold these diamond set studs are completed by post and butterfly fastenings for easy