Sterling silver blue john curved triangle cufflinks cl419 a smart and classic pair of blue johncufflinks a smooth curved triangle of original blue john 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 transform the naturalblue john stone into these sophisticated