9ct Yellow Gold Whitby Jet Toscana Marquise Twist Ring. R512. This striking ring is part of our Toscana handmade jewellery collection and features a marquise shaped cabochon of fine Whitby Jet stone which has been sourced locally from the Whitby coastline, North Yorkshire. The stone is framed within twisted 9ct Yellow Gold setting and is completed with a classic Yellow Gold band. 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 rings online and instore. Dimensions: 20x7mm.