Sterling Silver Preseli Bluestone Medium Heart Stud Earrings, E432. These romantic stud earrings feature beautiful heart shaped cabochons of the precious gemstone Preseli Bluestone framed in sterling silver and highly polished for a smooth, contemporary finish. Completed with secure sterling silver post and butterfly fittings. Dimensions: 6mm x 6mm. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging. Matching items are available within this collection.