For months, royal watchers have been fascinated by a tiny mystery: The small ring gleaming on Queen Camilla‘s left-hand pinky finger. It sits discreetly next to the precious Art Deco engagement ring given to her by husband King Charles III, and interested parties have found little information at hand about the jewelry and its history. It’s part of the Royal Collection, but further details are sparse. What, then, has made it so special to the queen?

