9ct Yellow Gold Blue John Abstract Heart Necklace. P2537. This romantic necklace features a stunning circular shaped cabochon of the finest Blue John stone, sourced directly from the Treak Cliff Cavern in Castleton, Derbyshire. The abstract heart 9ct yellow gold frame is both stylish and contemporary. The pendant hangs gracefully from a fluid 18 inch long 9 carat yellow gold chain complete with a classic bolt ring clasp for easy wear. 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 earrings 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: 11x12mm, Blue John: 5x5mm.