Rolled rata copper necklaceRata copper necklace by New Zealand jeweller Duncan MacKay 50mm leaf on a 450mm sterling silver chain Duncan Mackays passion and craft as a jeweller springs from his twin interests in scientific curiosity and meditative enquiry. Each piece is lovingly handcrafted, scribed, sawn, smoothed, sanded, stamped and soldered, filed, folded and etched with designs derived from our exquisitely beautiful world.