Carved Chain sapphire and spinel cuff earring from JOHN HARDY featuring sterling silver, black sapphire, engraved detail and for pierced ears. Please consider that this is sold as a single earring.. Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This item comes from a brand that performs well in relation to their impact on people, which ensures good working conditions in the supply chain..