Investiture at Buckingham Palace

The Queen held an Investiture at Buckingham Palace.

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Let me know if you spy any video of this one for brooch purposes...otherwise, we're in the dark. Update: With thanks to the Royal Spectator, looks like this was most likely the Cullinan V.

Queen Mary's Button Earrings

Three Strand Pearl Necklace

Gold Watch

Engagement and Wedding Rings