Silver Whitby Jet Marcasite Flower Pendant Necklace. P2128. This feminine pendant features a petite round cabochon of fine Whitby Jet stone that has been sourced directly from the north east coast of Yorkshire. The stone is set within an exquisite sterling silver flower design embellished with glistening marcasite stones, giving a sparkling finish to the piece. The pendant hangs gracefully from a fluid 18 inch long silver chain completed by a classic bolt ring clasp for easy wear. 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 necklaces on our website. Silver Whitby Jet Marcasite Flower Pendant Necklace. Pendant 25x15mm including bale.