Kate Middleton doesn't always wear the sapphire and diamond engagement ring that was once worn by her late mother-in-law ...

Eternity diamond rings are the best option ... Stacking rings can transform an entire look. Stackable diamond rings for women include multiple rings instead of just one, creating a balanced ...

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 ...