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Thousands of replicas of Princess Diana's engagement ring roll off the production line

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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.

Back in 1981 it cost a reported $60,000. But if you should find yourself in Yiwu, China, you can pick up a replica of Princess Diana and Kate Middleton's engagement ring for just $3. Discover the story of the real ring in this video:

In 1981, Prince William's mother, Princess Diana, caused a stir when she picked out the 18-carat sapphire ring for her engagement. Now, her son's wedding announcement adds more lore to the ring. NBC's Lee Cowan reports.