Royal women love wearing meaningful jewelry.

Meanwhile,Meghan Markle selected a dainty pair of pearl earringsthat were gifted to her by the long-serving monarch.

But royal fans also appreciated the little girl’s sense of style, even for the somber occasion.

Princess Charlotte and her horseshoe pin

But there is more to the accessory than meets the eye.

A jewelry super-sleuth onInstagrampointed out that the bauble resembled one that was worn the Queen Mother a century ago.

Commenters were notably grateful to learn the “fascinating” backstory of the piece of jewelry.