 |  | | | Gemstones: Pearls | 18 July 2006 | |  |
Compared with other gemstones pearls were relative latecomers when it comes to use in jewellery, but there are examples from as far back as 300 BC.
They grow either in mussels in lakes or in oysters in the sea. Jack Ogden from the Gemological Association of Great Britain and Victoria Finlay, the author of "Buried Treasure", show Claudia Hammond just what's so special about pearls. | |
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