Sterling silverwhitby jet toscana side marquise ring r513 this contemporary ring is part of our stylish toscana collection and featuresa marquise shaped cabochon of strikingwhitby jet stone that has been sourced locally from the whitby coastline north yorkshire the stone is framed within a sterling silver setting with a classic band all our whitby jet jewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a team of skilled craftsmen turn the raw jet