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How Princess Margaret's wedding tiara broke tradition (and why it won’t be seen again)

The famously rebellious royal selected the Poltimore Tiara, a Victorian-era diamond and gold headpiece.

See the British Royal Family's Glitziest Tiaras Hidden in the Royal Vault — and Who Once Wore Them

Princess Kate and Queen Camilla have their favorite tiaras, but there are some headpieces that have been kept out of the ...