Sterling Silver Whitby Jet Round Celtic Framed Brooch. m197. This classic brooch with a celtic frame features a stunning round shaped cabochon of the finest Whitby Jet stone, sourced directly from the north east coast of Yorkshire. The beautiful Sterling Silver brooch is perfect for every occasion. , fastening securely with a horizontal bar pin. 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: 40mm x 40mm, Whitby Jet; 16mm x 16mm.