Sterling Silver Blue John Four Stone Slim Hook Drop Earrings, E555. These beautiful earrings have been created using a brilliant combination of solid sterling silver and the highest quality hand carved Derbyshire Blue John. The contemporary style of the earrings creates a brilliant contrast between the purple of Blue John and the bright shine of the silver creating an overall interesting and elegant piece of jewellery. Secured by a silver hook fastening. Dimensions: 41mm x 5mm. All articles purchased from C W Sellors are securely dispatched with our elegant, personalised jewellery packaging. Matching products are available within this collection.