What kind of platinum-strung Pearls is radiant Helen Mirren wearing around her neck?

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ANSWER; Pinctada as shown in the GIA Certificate, otherwise known as or Natural Saltwater Pearls.
What kind of platinum-strung Pearls is radiant Helen Mirren wearing around her neck?

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|
ANSWER; Pinctada as shown in the GIA Certificate, otherwise known as or Natural Saltwater Pearls.