18ct Rose Gold Whitby Jet 0.20ct Diamond Half Eternity Ring. R809. This eye catching ring features five stunning cushion shaped cabochons of the finest Whitby Jet stone, sourced directly from the north east coast of Yorkshire. The beautiful 18ct rose gold frame is embellished by four dazzling princess cut diamonds.  At C W Sellors, we have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other Jet pieces online and in store to complement this ring. 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: 2x2mm, Width of band: 3mm.