Whitby Jet Earrings Drop Marquise Marcasite Silver. E1789. These completely breathtaking earrings deserve to be nowhere other than centre stage. They boast two tear drop shaped pieces of fine Whitby Jet stone that has been sourced directly from the north east coast of Yorkshire. The stone is set within the centre of an exquisite sterling silver diamond design that is embellished by dazzling marcasite stones, giving the piece an unmissable sparkle with every movement. All our Whitby Jet jewellery is designed and crafted within our very own workshops in Derbyshire where a team of skilled craftsmen turn the raw Jet into these stunning pieces of jewellery. You can find other matching Whitby Jet jewellery and other Whitby Jet earrings on our website. Sterling Silver and Whitby Jet.