Ray Griffiths' signature technique is crownwork, an intricate, hollowed out metal structure  originally used for European tiaras and crowns in the 17th-19th century. "It formed the underside of a piece to take the weight out of it," he explains.

Ray Griffiths' signature technique is crownwork, an intricate, hollowed out metal structure originally used for European tiaras and crowns in the 17th-19th century. "It formed the underside of a piece to take the weight out of it," he explains.