William, Kate & Princess Di's Ring Pose For Engagement Photos

As if the coverage of Prince William and Kate Middleton's engagement wasn't frenzied enough, during a press conference today at St. James' Palace, Wills revealed that he proposed to Kate with his mother's oval 18-carat sapphire and diamond engagement ring.

William, Kate & Princess Di's Ring Pose For Engagement Photos

He explained, "It was my way to make sure my mother did not miss out on today and the excitement that we are going to spend the rest of our lives together."

Here's a bonus shot of the couple ogling Diana's ring:

William, Kate & Princess Di's Ring Pose For Engagement Photos

And the requisite commemorative china:

William, Kate & Princess Di's Ring Pose For Engagement Photos

Prince William: Why I Proposed With Princess Di's Engagment Ring [Us]