Kate Middleton's had an on-again, off-again relationship with her engagement ring for a year. What's the royal secret about ...

The new sapphire and diamond eternity-style ring first caught attention in August last year when Kate appeared in a video congratulating Team GB athletes.

Princess Diana’s iconic sapphire and diamond engagement ring now belongs to Prince William's wife Kate Middleton Ariana Quihuiz is a contributing writer at PEOPLE. She has been working at PEOPLE ...

In the West, the practice of exchanging rings to mark a betrothal dates back to ancient Rome, when noble families would trade iron bands—known as annuli pronubi—to signify that a marriage agreement ...

Since the royal announced her engagement to Prince William in November 2010, the priceless sapphire and diamond jewel has ...