9ct Yellow Gold Blue John Oval Scalloped Edge Brooch. M054. This vintage style brooch features a unique oval cabochon of Blue John stone, sourced directly from Treak Cliff Cavern in Castleton. The stone is framed in 9ct yellow gold with an elegant scalloped edge decorated with open scrollwork detailing. All our Blue John jewellery is designed and crafted within our very own workshops in Ashbourne, Derbyshire where a team of skilled craftsmen transform natural pieces of Blue John into these stylish pieces of jewellery. You can find other matching Blue John jewellery along with matching Blue John pendants on our website. All articles purchased from CW Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Matching items are available within this collection. Dimensions: 45x35mm