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Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco. / AFP / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco.  / AFP / VALERY HACHE        (Photo credit should read VALERY HACHE/AFP/Getty Images)

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(From L) Monegasque free diver Pierre Frolla, Princess Charlene of Monaco, Italian actress Caterina Murino and Italian actor Remo Girone attend the AMREF gala on February 24, 2017, in Monaco. / AFP / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

(From L) Monegasque free diver Pierre Frolla, Princess Charlene of Monaco, Italian actress Caterina Murino and Italian actor Remo Girone attend the AMREF gala on February 24, 2017, in Monaco. / AFP / VALERY HACHE        (Photo credit should read VALERY HACHE/AFP/Getty Images)

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Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco. / AFP / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco.  / AFP / VALERY HACHE        (Photo credit should read VALERY HACHE/AFP/Getty Images)

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Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco. / AFP / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco.  / AFP / VALERY HACHE        (Photo credit should read VALERY HACHE/AFP/Getty Images)

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Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco. / AFP / VALERY HACHE (Photo credit should read VALERY HACHE/AFP/Getty Images)

Princess Charlene of Monaco attends the AMREF gala on February 24, 2017, in Monaco.  / AFP / VALERY HACHE        (Photo credit should read VALERY HACHE/AFP/Getty Images)