Workers produce replicas of Princess Diana's engagement ring at Yiwu Mingwang Jewellery Co in Yiwu, Zhejiang Province, China on March 16. As the Royal Wedding of Prince William and Kate Middleton is fast approaching, more replicas are being produced in China. Although being far from the quality of the original, with rhine stones instead of sapphires, these rings sell only for US $3 in Yiwu and around US $30 overseas.