Sterling Silver Whitby Jet Marcasite Rhombus Framed Ring. R431. This eye-catching ring boasts a striking rhombus shaped cabochon of the finest Whitby Jet stone, sourced directly from the north east coast of Yorkshire. The stone is placed within an exquisite sterling silver rhombus setting that has been embellished by dazzling marcasite stones bringing a sophisticated sparkle to the piece. The ring is completed by a classic sterling silver band. All our Whitby Jet jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform the natural Whitby Jet stone into these stunning pieces of jewellery. You can find other matching Whitby Jet jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.