Sterling silver blue john round domed cufflinks cl511 a smart pair of blue johncufflinks a smooth circular blue john gemstone is hand carved and polished and cabochon set in sterling silver a practical t bar fitting makes this pair perfect for everyday ease of wear all our blue john jewellery is designed and crafted within our very own workshops in ashbourne derbyshire where a team of skilled craftsmen turn the raw blue john stone into these sophisticated pieces of jewellery you can find