18ct yellow gold whitby jet 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 yellow 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 com