18ct White Gold Blue John Unique Diamond Egg Drop Necklace, PUNQ0000136. Part of our handmade Heritage collection, this delicate and unique 18ct white gold necklace features a piece of high polished natural Blue John stone, locally sourced from Castleton, Derbyshire. The Blue John has been shaped into an egg shape and sits elegantly below a open octagon shaped bail, beautifully adorned with 12 sparkling white diamonds, totalling 0.12cts. Designed perfectly for everyday wear, the 18ct white gold chain is securely fastened with a bolt ring style clasp. A truly feminine and sophisticated piece of jewellery to add to your fine jewellery collection. 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 stunning pieces of jewellery. You can find other matching Blue John jewellery on our website. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.