Sterling Silver Whitby Jet Small Rhombus Ring. R606. This stylish ring features a rhombus shaped cabochon of highly polished hand carved Whitby Jet which is framed within a deep sterling silver setting. A beautifully simple and classic ring, perfect for any occasion. All our Whitby Jet jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Whitby Jet into these stylish pieces of jewellery. You can find other matching Whitby Jet jewellery along with matching Whitby Jet pendants on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Matching items are available within this collection. Dimensions: Whitby Jet: 15mm x 15mm.