Which royal tiara will Kate Middleton wear on her wedding day?

The whole world will be looking on when Kate Middleton weds Prince William on April 29. But aside from the obvious matter of her dress, royal watchers are also wondering what she will wear on her head.

It's more than likely she will top her veil off with one of the glittering tiaras from the royal collection. Among them are (from left): The Duchess of Teck Diamond Tiara, the Strathmore Rose and the Delhi Durbar

All photos: © Getty, Rex