A rare natural pearl necklace with emeralds and diamonds, strung with 23 slightly graduated natural pearls, from Christie's Magnificent Jewels sale in Geneva in 2013, which set a new world record for a piece, selling for $8.5 million.

A rare natural pearl necklace with emeralds and diamonds, strung with 23 slightly graduated natural pearls, from Christie's Magnificent Jewels sale in Geneva in 2013, which set a new world record for a piece, selling for $8.5 million.

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