Kate Middleton doesn't always wear the sapphire and diamond engagement ring that was once worn by her late mother-in-law Princess Diana, and there is a standout reason why.

Eternity rings are traditionally gifted following a milestone event, like the birth of a child or a wedding anniversary Simon Perry is a writer and correspondent at PEOPLE. He has more than 25 ...

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. Initially thought to be a one-off choice ...