For Agatha Christie, even her jewels are a mystery. A brooch and a ring that belonged to the great crime writer were
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For Agatha Christie, even her jewels are a mystery. A brooch and a ring that belonged to the great crime writer were
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A deep blue diamond of 5.30 carats, set in a ring, has been sold in London for 6.2 million pounds (about 7.3
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A rare blue diamond mounted on a Bulgari ring from 1965: it will be sold at the Fine Jewelery auction of Bonhams,
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