Sterling Silver Blue John Zodiac Cancer Round Necklace, P3603. From the new Zodiac collection designed and handcrafted by C W Sellors, this versatile star sign necklace can be worn two different ways to express your mystic style or mood.  Hand crafted in sterling silver it features highly polished Blue John on one side and turn it over to glimpse the gemstone through the Cancer star sign symbol. It is sold complete with an 18 inch sterling silver chain.  Cancer birthdays fall between 21st June to 22nd July. This is the perfect addition to a jewellery collection that is unique as you are, or why not gift to your cosmically minded loved one.  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 gemstones into these stunning pieces of jewellery. You can find other matching Blue John  jewellery on our website and in our stores. Dimension: 14mm Diameter. All articles are lovingly and securely dispatched with our elegant jewellery packaging.