Sterling Silver Blue John Rhombus Drop Earrings. E078. These timeless drop earrings are perfect for every occasion. They feature hand carved cabochons of fine Blue John which are polished to perfection and set in solid sterling silver. Completed with secure post and butterfly fittings.  All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Blue John into these stylish pieces of jewellery. You can find other matching Blue John jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.  Dimensions: 29mm x 19mm top to bottom. Setting 14mm x 14mm.