Silver whitby jet triangular prism hook earringse2014 these unique and very eye catching earrings feature hand carved whitby jetgemstones inlaidinside solid sterling silver triangular frames that combine to produce a modern and striking prism designthe hook style ensures that you will feel secure whilst wearing this pair of earrings 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 the