The Duke and Duchess of Cambridge took part in the annual distribution of shamrocks to the Irish Guards today, and Kate wore a piece of extremely appropriate heirloom jewelry.
The golden shamrock brooch that Kate pinned to her coat has a tiny emerald set in its center. It's also been worn in the past by the Queen Mother and Princess Anne.
Kate also wore her Kiki McDonough citrine drop earrings with her outfit.
William, who enjoyed a Guinness during the visit, also wore a bit of chivalric bling -- that's the star of the Order of the Garter pinned to his dress uniform.
Are any of you wearing any special Irish heirloom jewelry on this St. Patrick's Day?